What are vertebrates?
There are two types of animals; vertebrates and invertebrates. Vertebrates have backbones while invertebrates do not. There are five main groups of vertebrates:
There are more than 30,000 species of fish in Earth’s oceans, seas, rivers and lakes.
Covering frogs, toads and salamanders, this comes from the Greek word amphibious. It means “living a double life”, to reflect living on both land and in water.
This group including crocodiles,
turtles and lizards, evolved from amphibians up to
323 million years ago.
Feathers are their most obvious characteristic, distinguishing them from other creatures in the animal kingdom.
Around 5,000 species of mammal can be found roaming our planet.
Reptiles evolved from amphibians.