Read the text and complete the sentences with the missing parts

• called mammals
• feed them on milk
• on two legs
• that live in the water
• that can fly
• that lives underground

There are a lot of different living beings on our planet. We call them animals. There is one big group of animals [ ]. Mammals have warm blood and their body temperature does not change if the weather gets too hot or cold. They give birth to babies and [ ]. Most mammals have fur on the whole body or its parts.

Humans are mammals that live on land and can walk [ ]. They do not have tails, horns or tusks.

Whales and dolphins are examples of mammals [ ]. Unlike fish, they have lungs and need air to breathe.

Bats are the only mammals [ ]. They spend most of their time in the air and have big wings.

A mole is a small animal [ ] and digs the ground. Moles have special fur, which helps them to move in the ground easily.