If you can no longer care for a live goldfish, the United States Fish & Wildlife Service recommends trying to find another ...

Could you tell one fish from another if they were the same species? Likely not, but new research suggests they might be able to tell us apart.

As this continued to happen, a team from the Max Planck Institute of Animal Behavior (MPI-AB) in Germany decided that these fish were to be the subjects of a new study. The team set out to see if ...

Intriguingly, these wild fish appeared to recognize the specific diver who had previously carried food, choosing to follow only them while ignoring other divers. To find out if that was true ...