Animal Classification

Which classification group includes animals that have gills and spend their whole lives in water?

Animals that have fur or hair and feed their babies milk are called what?

What do we call animals that live part of their life in water and part on land?

A bat is a mammal, not a bird. What main characteristic does a bat have that puts it in the mammal group?

Which group of animals has feathers and lays eggs?

What characteristic tells us that a penguin belongs to the bird group?

A snail, a spider, and a worm are all examples of animals without a backbone. What are they called?

Which two animal groups are the only ones whose members are naturally warm-blooded (their body temperature stays the same)?

What special body feature do all reptiles have to help protect their skin and keep them from drying out?