live and lay their eggs in water
Vertebrae
lions, cats and sheep
live in water and on land
gills instead of lungs
are cold-blooded
Braincase
two legs
are born alive
have scales
frogs, toads and salamanders.
cold-blooded
warm-blooded
lizards, snakes and turtles
have hair or fur
beaks
They lay their eggs
lay their eggs on land.
feathers
wings
fins instead of legs
Bones
live on land and in water
HUMANS
warm blood
lay their eggs in water.
the mothers feed their babies with milk
have smooth skin