Fish are aquatic types of life forms that have tails and fins in order to swim.
In Feeding Frenzy, fishes are eating those who are smaller than them and can get devoured by those who are bigger than them, like the protagonists they can be affected by hazards (such as mine bombs, jellyfishes and oysters), but some species weren't included in the game. (Note: The plankton image substitutes for loading fish images.) You can also see the wikipedia to see the real life fishes. (The types of fish text that are blue)