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Rhinoceros Hornbill

Wed, 25 Sep 2024 21:50:35 GMT

What Is a Rhinoceros Hornbill?

Rhinoceros hornbills are one of roughly 55 species of hornbills. All hornbills are found in Africa or Asia, but rhinoceros hornbills are only found in Southeast Asia and on a few surrounding islands. They live in tropical and subtropical climates in mountain rainforests. Rhinoceros hornbills are typically found in old-growth forests with enormous trees. We’ll come back to this in a bit!

Why Are They Called "Hornbills?"

Hornbills get their name from the large horn-like structure on the beaks of many species. These structures are called casques and have different jobs depending on the species. The rhinoceros hornbill gets its name because it has one of the largest casques of any species. Scientists hypothesize its main purpose is to amplify their sound (make them louder!). Rhinoceros hornbills communicate using a loud honking sound.

Scientists also believe a rhinoceros hornbill’s large casque can be used to impress potential mates and can even be used in combat between males.

Hornbills have a very long beak, so they are commonly confused with toucans. Hornbills and toucans are not related and live on different continents. However, they do have the same habitat, diet, and nesting sites, so they would be in constant competition if they did live near each other!

What Do Rhinoceros Hornbills Eat?

Rhinoceros hornbills are frugivores, meaning most of their diet is fruit. They use their long, colorful bill to pluck fruit from tree branches. They also feed on small animals like lizards and insects. Because of their fruit-heavy diet, rhinoceros hornbills are important seed dispersers in their rainforest home.

Both male and female rhinoceros hornbills have large, colorful beaks and casques, so it can be hard to tell them apart. The bright colors of their beak are actually from being rubbed in an oil they produce on their backs. The easiest way to tell a male and female rhinoceros hornbill apart is by looking at their eyes. Males have a red eye, while females have a blueish-white eye.

How Do Rhinoceros Hornbills Make Nests?

Male and female pairs strengthen their bond at the start of the breeding season. Rhinoceros hornbills are monogamous and will typically breed with the same mate year after year. They even use the same nest if it is still available. To strengthen their bond, they vocalize together and toss fruit to one another.

When it comes time to breed, females begin to prepare their nest. They have a very similar nesting strategy to the great hornbill and a few other Asian hornbill species. Rhinoceros hornbills nest in tree cavities of old-growth trees that are typically formed when a large branch falls from the tree. As a female gets ready to lay her egg, the pair begins to seal the opening of the nest shut with the female inside. They use mushed-up food, mud, and even poop to make the seal. They leave a narrow opening just large enough for the male to pass food to the female and eventually the chick.

The female remains trapped inside the nest sitting on her eggs for several weeks while she relies on her mate to bring her food. Once the chick hatches, the male will be responsible for feeding both it and the female. As the chick grows, the nest becomes cramped, and the female eventually breaks the seal and leaves the nest. They quickly seal the chick back inside and now both parents work to feed it. Once the chick develops its flight feathers, it too breaks out of the nest and starts its life.

Are Rhinoceros Hornbills Endangered?

This nesting strategy keeps the female and chick highly protected, but also have some challenges. If something happens to the male while the female is in the nest, she has no way of getting food. If they cannot find a tree cavity suitable for a nest, they will not be able to raise a chick. With deforestation being a large problem in rhinoceros hornbill habitat, this is becoming more and more of a problem.

We can help rhinoceros hornbills and all rainforest animals by protecting forests. By purchasing items made with sustainable palm oil and buying sustainably produced paper, we can help put a stop to deforestation.

Want To Learn More?

Check out EdZOOcating Adventures' Rhinoceros Hornbill lesson with videos, quizzes, activities, projects, glossaries, and more.

Flamingos

Wed, 25 Sep 2024 21:44:25 GMT

Where Do Flamingos Live?

There are six species of flamingos that live in and near shallow water ecosystems. Four species can be found in North and South America, and two live in Africa and Asia. They live in tropical and temperate climates.

Why Are Flamingos Pink?

Flamingos are known for their beautiful pink feathers. Their pink color comes from their diet. They eat blue-green algae, small brine shrimp, aquatic insects, and other small organisms that live in shallow water. Their food, especially the blue-green algae, has a high concentration of carotenoids, an orange-red pigment. The flamingos break this pigment down as they eat and it slowly builds up in their feathers, turning them pink! Flamingos are born a white-gray color, it can take up to 3 years for them to turn completely pink.

Different parts of the world have different food available for flamingos, causing some species to be pinker than others. Species that live where there is a high concentration of blue-green algae are pinker than those that live where there is a higher concentration of shrimp/water bugs.

Are Flamingos Filter Feeders?

Flamingos are filter feeders, that's how they can eat these tiny organisms from the water. Their beaks are lined with comb-like structures called lamellae that trap food in their mouth while water escapes. When feeding, they tip their heads upside down and quickly chatter their bill.

Their necks are long enough to allow them to reach the water for feeding. They are often seen standing on one leg, which commonly raises the question - why? Scientists aren’t sure why flamingos (and other birds) stand on one leg, but theories include keeping them warm by tucking one leg under their feathers or perhaps saving energy.

Do Flamingos Live in Groups?

Flamingos are typically gregarious, which means they live in large, flexible social groups. They gather in especially large groups during the breeding season when they build their nests along the shore. Flamingo nests are piles of mud with an indent in the middle where females lay one egg.

How Do Flamingos Raise Chicks?

Flamingo pairs stick with their mate for the season and work together to raise their offspring. Unlike most other birds that collect food and bring it back to the nest for the chicks, flamingos produce a substance called “crop milk” in their throats filled with nutrients and - carotenoids! Flamingo parents often lose some pinkness while producing crop milk to feed their chick.

After several weeks, chicks gather in groups called crèches and are cared for as a group. This makes less work for each individual pair of flamingos. After about four months, the chicks are totally independent.

Are Flamingos Endangered?

Fortunately, most flamingos are not threatened with extinction. However, they do face threats such as loss of feeding and nesting sites due to the construction of dams and channels and egg collection.

Want To Learn More?

Check out EdZOOcating Adventures' Flamingo lesson with videos, quizzes, activities, projects, glossaries, and more.

Scientific Names

Wed, 18 Sep 2024 23:51:32 GMT

Why Are Animal Names Confusing?

Sometimes talking about animals can be confusing. For example, jellyfish are not actually fish and neither are starfish! This can make things complicated. But don’t worry...

Even if an animal’s common name is confusing, we can rely on its scientific name to set the record straight. Let’s get started learning about scientific names.

What Is a Scientific Name?

You can tell a lot about an animal from its name.

Most animal species have a common name (sometimes several) and a scientific name . Scientific names are also called Latin names or binomial names.

We usually use common names when talking casually about animals. We call a lion… well, a lion. We don't usually call them a panthera leo. But common names can often be confusing. For example...

Starfish are invertebrates, not fish.
Prairie dogs are squirrels, not dogs.
Red pandas are not related to giant pandas even though they are both called "pandas."

Why Do Animals Have Scientific Names?

Scientists use Latin names when discussing animals because they are more specific and tell us more about the animal. A scientific name tells us if we are talking about a species, subspecies, or broader taxonomic group.

How To Write a Scientific Name

When writing a scientific name, the Genus Is Always Capitalized and the whole name is italicized .

Writing the Scientific Name of a Species

When writing the scientific name of a species, write the g enus (capitalized) followed by the species name (lowercase). This is how you would write the scientific name for a leopard:

Panthera pardus

Writing the Scientific Name of a Subspecies

When writing the scientific name of a subspecies, add the subspecies name following the genus and species name. Like the species name, this word is never capitalized. This is how you would write the scientific name for the Amur leopard, a subspecies of leopard:

Panthera pardus orientalis

How To Abbreviate a Scientific Name

You might see an animal's scientific name abbreviated. To save time, scientists use the first letter of the genus, a period, and the full species names. This is done for subspecies, too.

Abbreviating the Name of a Species or Subspecies

Species

A leopard's scientific name is Panthera parudus . It is abbreviated as:

P. pardus

Subspecies

An Amur leopard's scientific name is Panthera parudus orientalis . It is abbreviated as:

P. p. orientalis

Here are more examples of abbreviated scientific names.

Greater flamingo: Phoenicopterus roseus

P. roseus

Eastern box turtle: Terrapene carolina carolina

T. c. carolina

Southern white rhino: Ceratotherium simum simum

C. s. simum

Abbreviating the Species in a Genus

Genus

When discussing a genus as a whole, scientists write the genus name followed by sp. if there is just a single species or ssp. if there are several species.

The genus Panthera includes leopards, tigers, jaguars, lions, and snow leopards. If we were discussing all 5 species, we would write...

Panthera ssp.

If we were writing about koalas ( Phascolarctos cinereus ) , who are the only species in their genus, we would write...

Phascolarctos sp.

While learning how to write scientific names might be confusing, they are actually meant to help scientists avoid confusion! Take some time to research your favorite animals and practice writing their scientific names so you can become an expert.

Want To Learn More?

Check out EdZOOcating Adventures' Scientific Names lesson with videos, quizzes, activities, projects, glossaries, and more.

Taxonomy

Wed, 18 Sep 2024 21:49:07 GMT

What Is Taxonomy?

Taxonomy is the scientific study of identifying, describing, and classifying organisms. But what does that really mean?

Taxonomy helps us put organisms into groups based on how similar or related they are. Taxonomy can be used for many different organisms, but we are going to focus on animals.

How Do Scientists Classify Animals?

To decide what taxonomic group an animal belongs to, scientists look at characteristics, like...

DNA: Does this animal have similar DNA to other animals?
Morphology: Does this animal look like other animals?
Native range: Does this animal (or did this animal previously...) live near other animals?
Reproduction: Does this animal have live offspring or lay eggs?
Diet: Does this animal eat similar food to other animals?
Endotherm or ectotherm: Is this animal cold-blooded or warm-blooded?
Vertebrate or invertebrate: Does this animal have a backbone?

And many others!

What Is a Taxonomic Hierarchy?

Taxonomic groups are organized into a taxonomic hierarchy , which looks like an upside-down pyramid.

Groups near the top of the hierarchy (the widest section of the pyramid) are very broad and have many animals with just a few similarities. Groups on the other end of the pyramid (the narrowest section of the pyramid) are more specific, having just a few animals with a lot in common!

Domain

Domains are the largest, broadest group. Plants and animals belong to the same domain. Bacteria make up their own domain.

Kingdom

Kingdoms are where we separate plants from animals. This is why we sometimes call animals the "animal kingdom." All animals belong to the kingdom Animalia .

Phylum (Plural: Phyla)

In the animal kingdom, all vertebrates belong to one phylum (called Chordata ) and invertebrates make up several different phyla.

Class

Phylums are divided into classes. The Chordata phylum is divided into classes such as Mammalia (all mammals), Aves (all birds), Reptilia (all reptiles), and more.

Order

A class is further separated into smaller groups called orders. The Mammalia class is divided into orders such as Carnivora (all cats, dogs, bears, etc.), Rodentia (all rodents), Chiroptera (all bats), and more.

Family

Orders are divided into even smaller groups called families. The Carnivora order is divided into the Feline family (cats), Canine family (dogs, wolves, etc.), Ursidae (bears), and more.

Genus (Plural: Genera)

Families are further separated into genera. Animals in the same genus are very closely related and typically have many traits in common. The Feline family is divided into genera like Panthera (big cats), Lynx (lynx and bobcat), Acinonyx (cheetah), and more.

Species

A genus might include one or several individual species. The Panthera genus includes 5 species (lion, tiger, jaguar, leopard , snow leopard) while the Acinonyx genus only has one, the cheetah .

Subspecies

Some species may be broken into even smaller groups called subspecies. This often happens when one species is separated from each other. Leopards live in many different areas around Africa and Asia resulting in several different subspecies of leopard.

How Does Taxonomy Help Us Name Animals?

Scientific names for a species are written as " Genus species ." If we know an animal's taxonomy, we can write their scientific name. On the flip side... If we know an animal's scientific name, we can identify its genus and species name. If two different species share the same first word of their scientific name, we know they share a genus and must be closely related!

Using an animal's scientific name is a great way to get a better understanding of their taxonomy and what other animals they are related to. Visit our Scientific Names blog to learn more.

Science Is Always Changing

It is very important to remember that scientists are always learning and discovering new information! Advancements in technology and more research have helped scientists understand how animals are really related. As scientists learn new information about animals, they sometimes have to change the way they are classified.

Animals in a taxonomic group can change as scientists keep learning.

Want To Learn More?

Check out EdZOOcating Adventures' Taxonomy lesson with videos, quizzes, activities, projects, glossaries, and more.

Flying Foxes

Wed, 18 Sep 2024 16:53:03 GMT

What Kind of Animal Is a Flying Fox?

Though they are called flying foxes, these animals are actually a genus of large bats. They get the name flying fox from their large size and furry bodies, which sometimes resemble foxes. The largest species of flying fox has a wingspan that can reach more than 4 feet wide!

There are more than 60 species of flying foxes. They are found in eastern Africa, southern Asia, northern Australia, and on numerous islands in between.

What Do Flying Foxes Have in Common With Other Bats?

As a genus of bats, flying foxes have a lot in common with other bats.

They are mammals! Bats are unique because they are the only mammals that can truly fly. Like most mammals, bats are covered in fur (except for their wings) and have live offspring. Their wings are modified arms and hands that even have finger bones!

Most species are also nocturnal, though a few that live on islands are diurnal. Scientists think this is because there are few predators on those islands so flying foxes can fly freely in the daylight.

What Do Flying Foxes Eat?

Unlike most other bats, flying foxes are frugivores, meaning they feed mostly on fruit! Some species will also eat other plant matter, like nectar, and insects. As frugivores, they have an important job in nature.

They are seed dispersers! After feeding on fruit (including the seeds inside), they fly around and drop seeds in their waste. Flying foxes are especially important because they can move seeds between islands as they travel. The species that feed on nectar are also important pollinators.

While flying foxes have good eyesight, they rely mostly on their sense of smell to find fruit. Unlike some other bats, flying foxes do not have echolocation.

Do Flying Foxes Live in Groups?

Some flying foxes are solitary, meaning they live alone. However, most are gregarious, which means they live in a group. Flying foxes form large social groups that have a very loose social structure. A group of flying foxes is called a colony or a camp. Some species can have as many as 100,000 individuals in one camp!

Flying foxes typically have one offspring, called a pup, per year. They cling to their mom’s fur for the first several weeks of their life. They fledge around 3-4 months old but stay with their mom for more than a year. Most flying foxes can live to be about 15 years old.

Are Flying Foxes Endangered?

The biggest problem flying foxes face actually has to do with their love of fruit. Flying foxes commonly feed on crops and are hunted by farmers trying to protect their fruit. This is an example of human-wildlife conflict, which occurs when humans and wildlife live too close to each other. Several species of flying foxes have been driven to extinction because of this.

Many countries have put laws in place to protect flying foxes, which is helping to ensure we don’t lose any more species to extinction!

Want To Learn More?

Check out EdZOOcating Adventures' Flying Fox lesson with videos, quizzes, activities, projects, glossaries, and more.

Koalas

Wed, 18 Sep 2024 15:37:46 GMT

Where Do Koalas Live?

Koalas are one of the most iconic animals in Australia. They are endemic to the woodlands and forests of eastern and southeastern Australia. This means they are found there and nowhere else in the world!

Who Are Koalas Related To?

Koalas are marsupials, meaning females have a pouch to carry their offspring. However, koalas are the only living members of their family, so they don’t have any extremely close relatives. Their closest relatives are wombats! Other examples of marsupials are kangaroos, possums, and Tasmanian devils.

What Adaptations Do Koalas Have?

Koalas are well-known for their gray, fluffy fur and large, rounded ears. They are medium-sized marsupials, though males are much larger than females and can weigh up to 30 lbs!

Unlike their wombat cousin, koalas are arboreal, and they have lots of adaptations that make life in the trees a breeze. They have sharp, curved claws that grip into tree bark. While they have 5 fingers, two of them work like thumbs. These pincher-like hands are great for grabbing onto branches. They have strong muscles in their arms and legs to help lift themselves high into tree branches.

What Do Koalas Eat?

Koalas must be skilled climbers because they find their food high up in the trees, especially Eucalyptus trees. Leaves from many species of trees make up a koala’s diet. Because they only feed on a few different types of food, we call them specialist feeders. I like to think of specialists as picky eaters, whereas generalists are not picky. Generalists will eat just about anything they can find.

Eucalyptus is toxic to many other animals, so koalas don't have much competition for food. Koalas have a special enzyme that breaks down these toxins.

Their food is very low in nutrients, which is part of the reason koalas are so slow and sleepy. They can sleep upwards of 20 hours per day.

Do Koalas Live In Groups?

Aside from a mother and her offspring, koalas are solitary, meaning they like to live alone. Offspring may stay with their mom for well over a year. Older koalas have territories that they mark with scent glands on their chest. Young koalas may travel between territories in search of food and a territory of their own.

How Do Koalas Care for Their Offspring?

Like all marsupials, female koalas have a pouch on their abdomen where they carry their offspring. Their gestation is typically only about 30 days, so when koalas are first born, they are small and undeveloped. This is the case for most marsupials! They crawl across their mother’s fur to the safety of her pouch where they feed on milk and continue to grow.

Offspring stay in their mom’s pouch for up to 7 months before they are big enough and fuzzy enough to leave. When they outgrow the pouch, they ride around on their mom’s back! Eventually, they go off on their own to find a territory and start their life.

Want To Learn More?

Check out EdZOOcating Adventures' Koala lesson with videos, quizzes, activities, projects, glossaries, and more.

Moray Eels

Tue, 17 Sep 2024 20:28:38 GMT

Where Do Moray Eels Live?

Moray eels are a family of eels with about 200 species. Most moray eels are found in the ocean in habitats like coral reefs, rocky sea beds, and other areas where they can hide. Some moray eels are found in more temperate water and some are even found in freshwater!

What Do Moray Eels Look Like?

Though their long, thin body and unusual fins make them look like snakes, moray eels are fish, not reptiles! Like most fish, they breathe with gills and move around by swimming. However, unlike most fish, moray eels don’t have scales.

Instead, they have a layer of mucus on their skin. It protects their skin from parasites and allows them to slip into tight spaces to hide and hunt. The color of some moray eels appears different because of the mucus. Green moray eels are actually brown, but the yellow mucus on their skin makes them appear green.

Between 200 species, the size, colors, and patterns of moray eels are quite different from one another.

The smallest moray eel measures less than one foot in length, while the longest moray eel measures well over 10 feet! Some species are solid in color while others have spots or stripes. Some are dull and brown, while others are vibrant. One even looks like a ribbon!

What Do Moray Eels Have In Common?

Moray eels are carnivores. Moray eels eat animals like fish, crabs, squid, and octopuses. They hide in cracks and crevices to ambush their prey. Some moray eels even hunt cooperatively with a species of grouper, meaning they use teamwork! The moray eel swims into the tight spaces where fish might hide, scaring the fish out to the waiting grouper.

Otherwise, moray eels are typically solitary. They come together briefly for breeding when the female releases thousands of eggs. The eggs float up to the surface where they continue to develop. The larval eels float at the surface feeding on plankton for months before they are developed enough to travel to the sea floor.

How Do Moray Eels Catch Prey?

Moray eels have sharp teeth and a strong jaw, like we would expect from a carnivore. However, they have one extra special adaptation that makes catching prey a breeze. Moray eels have a pharyngeal jaw. This is a second jaw that sits further back in their throat. When hunting, the pharyngeal jaw shoots forward into the mouth to grab the prey, then pulls it back into the throat.

Moray eels sometimes get a bad reputation because they seem to show off those sharp teeth. However, they’re just breathing! Moray eels open and close their mouth to pull water in and over their gills so they can breathe while resting.

So, we know moray eels are big, bad predators with sharp teeth and a movable jaw, but do they have any predators? Some moray eels, especially the larger species, are apex predators in their environment. Other species are preyed on by large fish like groupers, barracuda, and sharks, and some are even preyed on by sea snakes.

Are Moray Eels Endangered?

Luckily, most species of moray eels are not threatened with extinction. They are often seen using dead reefs as their shelter, so we’ve seen that they can survive in some areas where other species cannot.

Several species of morays are poached from the wild to be sold as part of the aquarium trade.

Want To Learn More?

Check out EdZOOcating Adventures' Moray Eel lesson with videos, quizzes, activities, projects, glossaries, and more.

Clownfish

Tue, 17 Sep 2024 20:14:50 GMT

Where Do Clownfish Live?

Clownfish are a subfamily of fish with about 30 species. They are also called anemonefish. We’ll talk about why in a little bit. They live in warm, tropical waters in the Indo-Pacific. The Indo-Pacific is where the Indian Ocean meets the Pacific Ocean between Asia and Australia. They are typically found in coral reefs!

What Do Clownfish Look Like?

Most people picture clownfish orange and white thanks to movies like Finding Nemo. However, clownfish can be striped or solid and have a variety of colors like black, yellow, and even pink.

Why Do Clownfish Live In Sea Anemones?

Clownfish have a mutualistic relationship with sea anemones! A mutualistic relationship, also called mutualism, occurs when two different species interact and they get something good from the interaction. So, what benefits do clownfish and sea anemones get?

The main benefit clownfish get from sea anemones is protection for themselves and their eggs. Sea anemones are related to jellyfish and, like jellyfish, they are covered in venomous stinging cells. Most fish get stung when they touch a sea anemone, but not clownfish. Scientists hypothesize that clownfish are not harmed by sea anemones because of a thick layer of mucus coating on their bodies.

The sea anemone also provides clownfish with food scraps not eaten in the anemone’s last meal. Most clownfish are omnivores. They eat scraps of fish and other anemone leftovers, zooplankton, worms, and algae.

So, what does the anemone get in return? A few things! The clownfish provides the sea anemone with nutrients through its waste and defends the anemone from predators and parasites.

Do Clownfish Live in Groups?

Clownfish usually live in small groups with a strict hierarchy. The group is led by a dominant female. She is the largest in the group. The rest of the group consists of males. The largest, most dominant male is the only male that will breed with the female.

Female clownfish lay their eggs on a hard surface under or close to the anemone to be as protected as possible. The larger species of clownfish produce more than 1,000 eggs at a time! The eggs are cared for by the dominant male for 6-10 eggs before they hatch.

The tiny, undeveloped clownfish are all born male. They float toward the surface and stay there until they develop enough to return to the bottom to find a sea anemone of their own.

Why Do Clownfish Change Sex?

So, since there is only one female in the group, what would happen if something happened to the dominant female?

The dominant male would become a female and the new leader of the group. The next largest male in the group would become the new dominant male and all the other males would move up one rank. Other fish, like parrotfish and wrasses, can also change sex, but they start their lives as females instead of males.

Are Clownfish Endangered?

I think we can all agree that clownfish are the perfect combination of fascinating and adorable, causing lots of people to want clownfish in their home or local aquariums! Unfortunately, clownfish are poached (or taken) from the wild to sell in the aquarium trade.

They are also threatened by warming ocean waters which harm sea anemones. Sea anemones cannot survive in water that is too warm and, as the ocean temperature increases, their survival is threatened which also threatens the survival of clownfish.

We can protect clownfish, sea anemones, and all ocean animals by reducing our impact on climate change.

Want To Learn More?

Check out EdZOOcating Adventures' Clownfish lesson with videos, quizzes, activities, projects, glossaries, and more.

Animal Jobs

Tue, 02 Jul 2024 16:36:43 GMT

Why Do Animals Have Jobs?

Animals have many jobs that help the ecosystem stay in balance. In other words, for an environment to be healthy and functioning as it should, we need all the native species to do their jobs. Many animals have more than one role in their environment.

Animals also have jobs that help people (though that’s not why the animals do it). We call these ecosystem services . Trees provide an ecosystem service of creating oxygen that we rely on to breathe! When ecosystems are balanced, humans get many ecosystem services as an extra benefit.

What Kinds of Jobs Do Animals Have?

Decomposers

Decomposers are organisms that break down dead matter and return it to the environment as nutrients. These nutrients help plants grow, which provides oxygen to the atmosphere and food for animals. Worms, millipedes, and slugs are all decomposers, along with some non-animal organisms like mushrooms and bacteria.

Pollinators

Pollinators are organisms that transfer pollen between flowers. Most flowering plants require pollination to produce seeds (which often develop inside of a fruit). Plants need to reproduce (produce seeds), otherwise, they could go extinct. Imagine if there was one apple tree left in the whole world and it didn’t get pollinated so it never made seeds. Once it dies, there will be no more apples. Some plants can be pollinated by wind, but many rely on bees, butterflies, hummingbirds, and even mosquitos for pollination.

Seed Dispersers

Once plants make seeds, they rely on seed dispersers to spread seeds around an environment. Seeds must spread out to prevent plants from growing right next to each other where they would compete for water, sunlight, and nutrients. Wind and water can disperse seeds, but many plants rely on animals to eat fruit or nuts and then spread the seeds in their waste. Plants with thorny seeds can get hooked onto an animal's fur or feathers and spread out that way, too. Spider monkeys, toucans, and American black bears are all examples of seed dispersers.

Prey Species (Being a Food Source)

While many animals feed on fruit, other animals prefer other animals. Some animals have an important job in being a food source for other animals. Without prey species, carnivores would have no food. Deer, mice, and fish are very common prey species.

Predator Species (Keeping Animals In Check)

On the flip side, other animals act as important predators. Without predators, populations of prey species would grow “un-checked,” meaning they would grow and grow and grow until they ate all the plants and the environment was no longer livable. Predators like wolves keep populations of deer in check (who would over-graze the environment), snakes keep populations of mice in check (who could spread diseases), and sharks keep small fish in check (who would overgraze algae and other small fish).

Protecting All Animals

The moral of the story here is this: Animals all have jobs. Very important jobs. This is why we need to protect every single species of animal, including the ones that we might find to be a nuisance, even pests like mosquitoes.

Want To Learn More?

Check out EdZOOcating Adventures' Animal Jobs lesson with videos, quizzes, activities, projects, glossaries, and more.

Invasive Species

Tue, 02 Jul 2024 16:30:21 GMT

What Is an Invasive Species?

An invasive species is an organism that has been introduced to an area it is not native to. Invasive species can be plants, animals, or fungi and they often cause problems in the ecosystems they’ve been introduced to. Today, we are going to focus on animals.

How Do Animals Become Invasive?

Invasive species can reach new places both on purpose and by accident. And sometimes, we don’t know for sure how they were introduced, but we can make hypotheses.

Cane toads were introduced to Australia almost 100 years ago on purpose. Australia was having a problem with beetles eating sugar cane crops. They introduced cane toads, which are native to Central and South America, to eat the beetles to protect the crops. However, cane toads are not picky eaters. They ate many small, native animals and outcompeted native frogs for food. Few predators could eat toxic cane toads, causing their population to grow rapidly. Today, cane toads still threaten native species in Australia.

Burmese pythons were introduced to Florida by accident. There are many hypotheses about how Burmese pythons got from their native range of Asia to Florida. Scientists hypothesize that many pythons were released by pet owners who could no longer care for the large snakes. Large storms frequently hit Florida and have previously destroyed snake breeding centers, releasing snakes into the wild where they began to thrive.

Why Are Invasive Species a Problem?

Invasive Species Eat Native Species

Brown tree snakes are native to Australia and the surrounding islands. Scientists hypothesize they were introduced to the small island of Guam when they stowed away on a cargo ship. Before the arrival of brown tree snakes in Guam, native birds had very few predators and very few predator-defense adaptations. Brown tree snakes fed heavily on native birds and have even caused some endemic species to become extinct.

Invasive Species Outcompete Native Species

American bullfrogs are native to the eastern United States but were introduced to the West in the late 1800s to control populations of insects. They are large, powerful carnivores. They have out-competed many native amphibians and have caused many to become endangered.

Invasive Species Change the Landscape

Nutrias are native to the wetlands of South America but have been introduced to several continents due to the fur market. They feed on aquatic plants. The roots of these plants keep the wetland soil in place. When nutrias feed on the plants, they loosen the soil, causing the wetland to become unstable.

Invasive Species May Have No Natural Predators

The population of some invasive species can grow out of control if they have no predators in their introduced range. Venomous lionfish have no natural predators in the Caribbean where they are invasive. They were likely introduced by people who no longer wanted them in their home aquariums. They are powerful predators and, as their population grows larger and larger, they feed on more and more native species.

How Are Invasive Species Removed?

Physical Control: Communities promote the hunting of invasive species to reduce their population size in introduced ecosystems. This method is common in controlling Burmese pythons and lionfish.

Chemical Control: Pesticides or other chemicals are used to remove invasive species, as well. Scientists attempted to remove brown tree snakes from Guam by dropping poisoned rats for them to eat!

You can help prevent the spread of invasive species by following rules and regulations when traveling and not releasing pets into the wild.

Want To Learn More?

Check out EdZOOcating Adventures' Invasive Species lesson with videos, quizzes, activities, projects, glossaries, and more.

Animal Groups

Tue, 02 Jul 2024 16:21:52 GMT

Do All Animals Live in Groups?

While some animals live in groups with other members of their species (and sometimes even other species), some animals prefer to live alone. Animals that live alone are called solitary . Tigers, polar bears, red pandas, and many other animals are solitary.

Many solitary animals are territorial, meaning they don’t like having others in their space. They may mark their territory or even fight with others to keep them out. Living alone has some advantages such as not needing to share food!

Naming Animal Groups

While there are many solitary species, there are also many social animals! Animals that live in social groups are called gregarious .

Sometimes, animal groups have funny names, like a…

Pride of lions.
Herd of elephants.
Flamboyance of flamingos.
Committee of vultures.

How Do Animal Groups Interact?

Some gregarious animals, like lions, live in small family groups. Other gregarious animals, like flamingos, live in large, flexible social groups. A flamingo may leave or join the group at any time with no real change to the structure of the group.

Some gregarious animals work as a team for the good of the group as a whole. Elephants live in herds where all the adults work to protect each other’s offspring. Meerkats live in a group called a mob. They make alarm sounds when they see danger to warn the rest of the group to take cover. Ants and bees live in colonies. They live in complicated, intricate social groups where each member has an important job.

Other gregarious animals may live together, but they are more focused on their own survival rather than caring for the group as a whole. Caribou, schooling fish, and many penguins are like this.

Why Do Animals Live In Social Groups?

Safety In Numbers

If an animal is living in a group, they are less likely to be eaten by a predator. Imagine this… you’re a fish! You’re swimming through the ocean all alone when suddenly, there is a shark. There is a pretty good chance you’re going to be the fish that gets eaten since it’s just you and the shark. But if you were in a group of 100 fish and suddenly there is a shark, there is only a 1/100 chance that YOU will be the fish that gets eaten!

Hunting As a Team

For predators, living in a group can be a helpful way to catch prey more easily since they can work as a team! African painted dogs live in large packs that work together to catch prey, like antelope. They spread out across the area and take turns leading the chase to make sure their prey doesn’t outrun them. They then share their meal with the whole pack!

Mate Availability

Instead of having to search and signal for a mate, many gregarious animals live with potential mates, year-round! Bison travel across grasslands in giant herds. When the breeding season arrives in the spring, they join herds and males compete for mates.

Help With Offspring

Some animals that live in groups also work together to raise their offspring. When a baby squirrel monkey is born, many females in the group will help care for it. They will even take turns carrying the baby on their backs.

Challenges of Living In a Group

While there are a lot of benefits of living in a group, there are a few negative aspects, as well. Any food that is caught by the group is usually shared by the group, meaning smaller amounts of food for each individual.

For many gregarious animals, living in a group can cause competition within the group for dominance or access to food. The dominant male in a troop of baboons is constantly under threat from other males in the group for dominance.

Lastly, living in a group makes animals vulnerable to one enormous threat… people. When humans poach (meaning hunt or take from the wild) animals like fish, deer, or buffalo, it is easier to find and catch one (or many) when they are in a large group.

Overall, living in a group can be very beneficial and many animals depend on their groups for protection and survival.

Want To Learn More?

Check out EdZOOcating Adventures' Animal Groups lesson with videos, quizzes, activities, projects, glossaries, and more.

Animal Camouflage

Tue, 02 Jul 2024 16:03:36 GMT

What is camouflage?

In zoology, camouflage describes the ability of an animal to blend in or conceal its appearance. Camouflage can also be called cryptic coloration. Camouflage is typically used for one of two purposes:

To sneak up on prey. Imagine a leopard stalking its prey. Its rosettes provide camouflage among dry grasses so they can get close enough to their prey to attack.
To avoid predators: One of the best ways to not get eaten is to avoid being spotted by a predator to begin with! Imagine a stick bug hiding from a bird. They blend into the other sticks so well that the birds may not even see them!

Different Types of Camouflage

Background matching:

This is the most common type of camouflage and its name describes what it means! This type of camouflage occurs when an animal’s colors and patterns match its surroundings. Many species of owls use background matching. The colors and patterns of their feathers help them blend into tree bark!

Sometimes even the shape of the animal matches its environment, like a leaf insect whose body is shaped like a… well, a leaf! When an animal pretends to be something that it is not, whether that be something else in their environment or a different species, we call it mimicry.

Some animals even change their color to match their surroundings. Octopuses are my favorite examples of this! Not only can they change their color to perfectly match whatever structure they are trying to blend in with, but they can also change their patterns AND the texture of their skin. If they are blending into a bumpy coral, their skin will become bumpy, too!

Some animals change color more gradually, like many species of hares that live in the tundra. They change from brown to white during winter to blend into the snow.

Countershading:

Countershading is a type of camouflage characterized by the back of the animal being darker than the belly of the animal. Animals on land use countershading, like gazelles. However, I like to think about it for aquatic and semi-aquatic animals like penguins, sharks, and turtles. To see how this works, I need everyone to put on their imaginary goggles, we’re going swimming in the ocean!

Imagine swimming at the surface looking down at the dark ocean floor. If an animal swam below you that had a dark-colored back, it would blend into the dark ocean floor.

Now imagine you’re laying on the ocean floor looking up at the bright sunlight on the ocean’s surface. If an animal swam above you with a light-colored belly, it would blend into the brightness of the sun above them.

Disruptive coloration:

Disruptive coloration occurs when the colors or patterns of an animal make it hard to see the outline of the animal. If a predator cannot see where the prey animal starts or ends, it will be hard to catch them!

Imagine a zebra in a herd of many zebras. If the zebras are all moving around back and forth, it can be very challenging for a predator to see where one zebra starts and where the next one ends. It makes it harder for them to hone in on one individual zebra!

Disruptive coloration can also occur when an animal’s colors or patterns help hide body parts that would give away information about the animal, like where its head is! Some frogs have markings that make it hard for a predator to see where their eyes are.

Camouflage In a Changing World

Thousands of species rely on camouflage for survival. But what would happen if an environment changed and the camouflage used by these species was no longer effective? As human actions change ecosystems all around the world, animals will need to adapt to camouflage with these changes or they may not survive.

Want To Learn More?

Check out EdZOOcating Adventures' camouflage lesson with videos, quizzes, activities, projects, glossaries, and more.