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There are so many different types,
or species, of animals that
scientists put them in groups
so it’s easier to study them.
Mammals, birds, reptiles,
amphibians, and fish are
vertebrates. Creepy-crawlies
are invertebrates.
Types of animals
What is the only mammal that can fly?
Reptiles
Most reptiles have dry,
scaly skin. They mainly
live on land. Nearly all
reptiles lay eggs, but some
give birth to babies.
Mammals
Mammals usually have live
babies, which feed on their
mother’s milk when they’re
born. Mammals often have
fur on their bodies. Humans
are mammals.
Zebra
Wolf
Mouse
Lion cub
Lizard
Deer fawn
The living world
Tortoise
