How are the animals?
Animals are living beings are born, grow, feed, have children and die.
There are over one million different animals. Some are very large, such as whales and others, such as insects, are very small.
Vertebrates and invertebrates
To study the animals you must group.
The animals were divided into two groups: vertebrates and invertebrates.
Vertebrate animals are those skeleton. The skeleton consists of bones that support and shape the body.
They are vertebrates, eg fish, frogs, birds, dogs, etc..
Invertebrate animals are those who have no backbone. Many have a soft body, such as worms, some have shells that protect your body, such as snails, and others have shells, like crabs.