New research shows that rainbow fish defend themselves by luring predators to attack the head and then suddenly changing direction to escape.
The secret to surviving the stages of environmental change is to evolve quickly.
As a result of a new chemical analysis, Poecilia reticulata is placed high in the food chain, even standing on a shark.
Guppies have long been used as an effective weapon against larvae to prevent diseases from mosquitoes.
The vast majority of us think that fish can only lay eggs, but there are also fish that can give birth, in which guppies are an example.
The males of a freshwater fish in Canada have evolved with prongs on their heads to force the females to mate with them.
Scientists have found that, in some animals in nature, females have managed to store male sperm during a long time, even up to several years before fertilizing an egg, although
The British Guardian newspaper on March 20 presents the dazzling dances of the lizard fish through the lens of Thai photographer Visarute Angkatavanich.