The way guppy fish behave suggests they can be tricked into believing holes are larger or smaller than they really are – but they don’t always interpret the optical illusions in the same way ...

Researchers from the University of Exeter have discovered that Trinidadian guppies change their eyes from silver to black to warn other fish when they’re feeling aggressive.

A company called Studio Diip has created a motorized go-cart. For fish. Though "why" is the first question that comes to mind, at this point we're only able to give you the "how." When Little Dory ...

Root cause: To overcome dengue spread, guppy fish to be thrown into water Such fish will eat the larvae of the dengue mosquito and destroy their breeding grounds.