ShareYourGroupShareYourGroupAnimals

Fish

Fish live in water and breathe through gills, which take oxygen from the water. Most are covered in scales and move with fins. Fish are cold-blooded. Sharks and rays have a skeleton of cartilage, while most other fish have a skeleton of bone. Whales and dolphins are not fish: they are mammals.

How to recognise a fish

Fish on this site

Sorted by scientific order

Within the group, scientists place animals in orders. Animals in one order share a common ancestor.

What they eat

Other groups: mammals, birds, reptiles, amphibians, invertebrates.