Animal Classification Basics

Front

Vertebrates

Back

Animals with a backbone

Front

Invertebrates

Back

Animals without a backbone

Front

Mammals

Back

Warm-blooded, have hair, live birth

Front

Birds

Back

Feathers, lay eggs, warm-blooded

Front

Reptiles

Back

Cold-blooded, scales, lay eggs

Front

Amphibians

Back

Cold-blooded, live in water and land

Front

Fish

Back

Live in water, have gills

Front

Arthropods

Back

Exoskeleton, segmented body

Front

Mollusks

Back

Soft body, often have shells

Front

Echinoderms

Back

Spiny skin, radial symmetry