Animal Types: Mammals and More

Birds

• have feathers, lay eggs

• are mammals

• can swim

• have scales

Reptiles

• have feathers, give live birth

• have scales, lay eggs

• are warm-blooded, live in water

• have fur, lay eggs

Amphibians

• live only in water

• are warm-blooded

• both in water and on land, cold-blooded, undergo metamorphosis

• do not undergo metamorphosis

Fish

• in water, have gills, cold-blooded

• live on land, have lungs, warm-blooded

• in trees, have feathers, warm-blooded

• in the air, have wings, cold-blooded

Insects

• legs, exoskeleton, most have wings

• eight legs and a hard shell

• two legs and no wings

• six legs and a soft body

Mammals

• have scales and lay eggs

• have hair or fur, give birth to live young

• are cold-blooded and live in water

• have feathers and can fly