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Learn About Animals

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Learning about Animal Groups

Mammals -

(formally Mammalia) are a class of vertebrate, air-breathing animals whose females are characterized by the possession of mammary glands while both males and females are characterized by hair and/or fur, three middle ear bones used in hearing, and a neocortex region in the brain. Some mammals have sweat glands, but most do not.

Birds -

(class Aves) are winged, bipedal, endothermic (warm-blooded), egg-laying, vertebrate animals. There are around 10,000 living species, making them the most varied of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from the 5 cm (2 in) Bee Hummingbird to the 2.75 m (9 ft) Ostrich. The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic period, around 150-200 Ma (million years ago), and the earliest known bird is the Late Jurassic Archaeopteryx, c 150-145 Ma. Most paleontologists regard birds as the only clade of dinosaurs to have survived the Cretaceous-Tertiary extinction event approximately 65.5 Ma.

Insects -

are a class within the arthropods that have a chitinous exoskeleton, a three-part body (head, thorax, and abdomen), three pairs of jointed legs, compound eyes, and two antennae. They are among the most diverse group of animals on the planet and include more than a million described species and represent more than half of all known living organisms.[2][3] The number of extant species is estimated at between six and ten million,[2][4][5] and potentially represent over 90% of the differing metazoan life forms on Earth.[6] Insects may be found in nearly all environments, although only a small number of species occur in the oceans, a habitat dominated by another arthropod group, the crustaceans.

Reptiles -

are animals in the (Linnaean) class Reptilia. They are characterized by breathing air, laying shelled eggs, and having skin covered in scales and/or scutes. Reptiles are classically viewed as having a "cold-blooded" metabolism. They are tetrapods (either having four limbs or being descended from four-limbed ancestors).

Fish -

A fish is any aquatic vertebrate animal that is covered with scales, and equipped with two sets of paired fins and several unpaired fins. Most fish are "cold-blooded", or ectothermic, allowing their body temperatures to vary as ambient temperatures change. Fish are abundant in most bodies of water. They can be found in nearly all aquatic environments, from high mountain streams (e.g., char and gudgeon) to the abyssal and even hadal depths of the deepest oceans (e.g., gulpers and anglerfish). At 31,900 species, fish exhibit greater species diversity than any other class of vertebrates.[1]

Amphibians -

(class Amphibia, from Amphi- meaning "on both sides" and -bios meaning "life"), such as frogs, salamanders, and caecilians, are ectothermic (or cold-blooded) animals that metamorphose from a juvenile water-breathing form, either to an adult air-breathing form, or to a paedomorph that retains some juvenile characteristics. Mudpuppies, for example, retain juvenile gills in adulthood. The three modern orders of amphibians are Anura (frogs and toads), Caudata (salamanders and newts), and Gymnophiona (caecilians, limbless amphibians that resemble snakes). Like the fish they evolved from, most amphibians lay eggs in water. Amphibians are superficially similar to reptiles, but reptiles are amniotes, along with mammals and birds. The study of amphibians is called batrachology.

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Mammals

All mammals have hair or fur.

The hair helps keep them warm.

Mammals are warm-blooded animals.

The weather may be cold or warm, but their bodies always stays the same temperature.

All mammals are born alive.

The babies drink milk from their Mother.

Mother mammals take care of their babies.

All mammals breath air with lungs.

Mammals are different in some ways.

The eat different foods.

Some mammals are carnivores, they eat only meat.

Some mammals are herbivores and only eat plants.

Some mammals are omnivores and eat both plants and small animals.

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Birds

Birds are animals with feathers and wings.

Their feathers helps them to stay warm and dry.

Their wings helps them to fly.

Like mammals, birds are warm-blooded animals.

Birds are the same in many ways.

All birds lay eggs.

The Mother bird lays her eggs in a nest.

The Mother or Father sits on the eggs to keep them warm.

They breath air with their lungs.

Birds do not have teeth.

All birds have beaks, but they are different.

A pelican uses its long beak to catch and carry food.

Eagles and Owls use their beaks to tear food.

Ducks use their beaks to strain water plants from the water.

Birds' feet are adaptations to their environment.

Owls have strong toes and long, sharp claws for grasping animals.

Robins and other perching birds have claws that can grasp twigs and branches.

Ducks have feet for swimming.

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Reptiles

Snakes, lizards and turtles are reptiles.

Reptiles are covered with scales.

Their skin may feel rough or dry.

All reptiles are cold-blooded.

If a reptile is cold it cannot move fast.

Most reptiles lay eggs.

The eggs are laid on the land.

Somtimes the Mother will bury the eggs.

The babies hatch from eggs.

The parents do not feed their babies.

The babies use instinct to find their own food.

Many reptiles can swim, but they do not breath underwater.

Reptiles breath air with lungs.

Many reptiles are the same colour as the things around them.

This camouflage helps protect them from their enemies.

Some reptiles use their tongue to help them smell.

Some reptiles molt as they grow.

There is new skin under the old.

Reptiles live in forests, jungles, and deserts.

Crocodiles and alligators are reptiles, too.

They spend a lot of time near the water.

They keep their eyes and nostrils above the water, while their bodies are under water.

They also have waterproof flaps over their ears.

Unlike most reptiles, a mother alligator will take care of her young.

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Amphibians

Amphibians are cold-blooded animals.

Most amphibians have wet smooth skin.

Unlike reptiles, they have no hair or scales.

Frogs, toads, salamanders are amphibians.

When amphibians are young, they live under water.

When they are older, they live on land.

Amphibians lay eggs in water.

Many eggs are laid together.

The eggs do not have hard shells.

The babies hatch from the eggs.

The babies breath and grow in the water.

They have gills like fish.

They can swim like fish.

Baby amphibians find food under water.

Baby amphibians are tadpoles.

A tadpole begins to look more like its mother as it get older.

It grown legs and lungs.

Then it can live on the land.

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Fish

Many different kinds of animals live in the water.

Fish are water animals.

They use their tails and fins to swim.

Some fish live in lakes and rivers.

Many fish live in the ocean.

Fish are special water animals.

They are covered with hard scales.

The scales help protect the fish.

Fish can be many different sizes, shapes and colours.

Most fish are born from eggs.

Unlike mammals, fish do not take care of their young.

Fish are cold-blooded.

Their bodies are not always warm.

Fish that live in warm water have warm bodies.

Fish that live in cold water have cold bodies.

All fish have gills.

A fish uses its gills to breath.

The gills take air from the water.

The gills are in the slits on the side's of the fishes head.

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Insects

A grasshopper is an insect.

All insects have six legs.

Insects have three body parts.

Most insects have four wings.

How many insects can you name?

A praying mantis is an insect.

All insects lay eggs.

Some baby insects look like their parents.

Babies of the praying mantis look just like their parents, but they are very tiny.

Some babies do not look like their parents.

Caterpillars hatch from butterfly eggs.

The caterpillar eats and grows.

Soon it stops eating and stays very still.

It changes into a pupa.

Inside the pupa the insect is changing.

An adult butterfly climbs out.

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