THE STUDY OF LIVING THINGS
VERTEBRATES
All animals with a backbone are vertebrates.
| FISH | Fish are cold-blooded vertebrates. They have scales
and fins, they breathe with gills and live in water. |
| AMPHIBIANS | Amphibians include frogs and newts. They
are cold-blooded and can live both on land and water. They lay
eggs in water. Frogs eggs are called tadpoles. |
| REPTILES | Reptiles include snakes, lizards and
turtles. They have scaly skin and lay eggs with
shells on land. Dinosaurs were reptiles. |
| BIRDS | Birds have feathers and wings and reproduce
by laying eggs. They make nests in which they lay their
eggs. When the baby birds hatch, they are called chicks.
When the chicks are ready to fly, they are called fledglings. |
| MAMMALS | Mammals are warm-blooded vertebrates with hair. They respire using lungs, they have two pairs of limbs and they feed their young with milk. |
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