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Animal (Classifications of animals (Birds (vertebrates, warm-blooded,…
Animal
Classifications of animals
amphibians
vertebrates, cold-blooded
no outer body covering but have a layer of moist and slimy skin
the young of amphibians live in water and breathe through gills
the adult amphibians can live both on land and in water as they can breathe with their lungs or through their skin.
the female amphibians lay eggs in water
the adult amphibians do not care for their young.
such as frog, toad, salamander, newt
Birds
vertebrates, warm-blooded
outer body covering: feathers
all birds have beaks but no teeth
different birds have different kinds of beaks to suit their own feeding habits
hooked beaks help birds tear the flesh of their prey while long and straigh beaks help birds get food that is found in the mud and sand.
have a pair of wing and two legs
most birds can fly
have claws to hold on to their preys, perch or scratch the ground while some birds have webbed feet to help them swim
lay eggs that are protected by a hard shell
birds that can fly: sparrow, eagle, owl
birds that cannot fly: penguin, ostrich, emu
fish
cold-blooded, vertebrates
have fins to help them swim
scales to protect their bodies
streamlined bodies to help them swim more easily in water
do not have eyelids so they cannot close their eyes
reproduce by laying eggs: goldfish, salmon
give birth to their young alive: molly, guppy, shark, swordtail
live in water
most fish either live in sea water or fresh water. some fish, such as salmon and eels can adapt to both environments
examples of fish: shark, stingray, seahorse, guppy, eel
Insects
cold-blooded invertebrates
do not have a backbone
have three pairs of jointed legs, a pair of jointed feelers
have three body segments: head, thorax and abdomen
most insects have wings and can fly
breathe through small openings known as breathing tubes or spiracles on both sides of their thorax and abdomen
lay eggs
examples of insects: ant, dragonfly, butterfly, ladybirds, bee
mammals
warm-blood vertebrates
have two pairs of limbs, lungs for breathing and an outer body covering of hair
most mammal give birth to their young alive
some exceptions lay eggs such as platypus and spiny anteater
female mammals produce milk to feed their young
most mammals live on land: bear, goat
some mammals live in the sea: whale, dolphin
reptiles
cold-blooded vertebrates
have leathery and dry skin covered with scales
breath through lungs
most reptiles reproduce by laying eggs that are protected by leathery shells
the young are usually not care for
examples of reptiles: tortoise, snake, alligator, lizard, crocodile
Different types of animals
Animals differ in
the place they live in, which is also known as a habitat,
their outer body coverings,
the way they move,
the kind of food they eat,
the way they reproduce.
Animals live in different habitats.
They live in different places because they have different needs.
They live in places where they can find food and water easily, and shelter themselves from weather changes and dangers.
They either live on land, in water or both on land and in water.
Animals that live on land
underground: rats, rabbits, earthworm and mole
Grassland: Zebra, giraffe, sheep and goat
caves: bear, bat, tiger, wolf and gorilla
trees: bird, koala, bee, owl, monkey, squirrel, woodpecker
animals that live in water
salt water: whale, shark, mackerel, jellyfish, tuna
fresh water: guppy, goldfish, tadpole, tilapia
animals that live both on land and in water: frog, salamander, newt, seal, otter, turtle, crocodile
Animals differ from one another in many ways.
Animals have different outer body coverings
to keep them warm
give them protection
make them look beautiful
help them to camouflage
4 different types of outer body coverings: fur (hair), feather, scale and shell
animals that have hair
can be found mostly on mammals such as sheep, goat, dolphin and dog
keeps the animals warm
animals living in the cold climates have a thick layer of hair to protect them from the cold such as polar bear
animals living in warm or hot climates have a thin layer of hair
animals that have feathers
keep the birds warm
can be found only on birds
help them to fly
protect them from rain
make the birds look more attractive to their mating partners
such as eagle, sparrow, chicken, peacock, parrot
animals that have scales
can be found on most fish and reptiles
hard
protect the animals
animals that have shell
hard
act as a shelter for the soft bodies of the animals
protect them from danger
such as crab, prawn, snail, lobster, turtle
such as crab, prawn, snail, lobster, turtle
animals without outer body coverings
have a layer of soft skin or hard, shell-like skin
soft skin: squid, jellyfish, frog, earthworm
hard, shell-like skin known as exoskeleton: insects such as grasshopper, beetle, fly
animals have different diets
feed on different kinds of food to stay alive as they cannot make their own food.
Herbivores: animals that feed on plants only
Carnivores: animals that feed on animals only such as eagle, tiger, hawk, leopard, lion and wolf
Omnivores: animals that feed on both plants and animals such as cockroach, duck, Man, monkey and rat.
animals have different ways of reproduction
reproduce to have young to ensure the continuity of their own kind.
two ways of reproduction: lay eggs or give birth to their young alive.
most birds and reptiles lay eggs on land while most fish and amphibians lay eggs in water.
Most mammals give birth to their young alive.
animals move in different ways
to look for food, water or shelter, escape from danger and look for mating partners
have different body structures that are adapted to different kinds of environment and they use different parts of their bodies to hop, fly, climb, glide, crawl, swim, wriggle or gallop.
they use different parts of their bodies to hop, fly, climb, glide, crawl, swim, wriggle or gallop.
hop with their hind legs: kangaroos, grasshoppers
fly with their wings: most birds and insects
glide by pushing their bodies against the ground: snakes and worms
swim with their fins, tails and flippers: fish and some mammals
run with their legs: most mammals
Introduction to animals
There are many kinds of animals around us.
Animals are one of the major groups of living things.
Characteristics of animals
Animals have all the characteristics of living things.
Animals
need air, food and water to stay alive,
grow
can move about freely on their own,
respond quickly to changes around them,
reproduce
die
