vertabrates

Mammals

reptiles

amphibian

birds

have scales, not fur

ear holes instead of ears

usually lay eggs, sometimes live young

four legs or no legs

cold blooded

have feathers or wings

lay eggs

have two legs

ear holes instead of ears

warm blooded

have hair or fur

give birth to live young

mammal mothers nurse their young with milk

fish

have lung and need air to breathe

mammals that live on land have four legs, and ears that stick out

warm blooded

breathing under water using gills not lungs

live in water

have scales and fins (no hair or fur)

lay many eggs

cold blooded

live on land/ in water

webbed feet

breath with lungs and gills

cold blooded

Moist smooth skin (no hair or fur)

Dry skin

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