Natives of Trinidad and Tobago, the fish are popular as aquarium pets everywhere. They have also been the focus of many studies of polyandry, which occurs when females mate with two or more males in ...

Guppies are a small, pretty species of fish that are extremely popular for home aquariums. While they’re fun in captivity, in the wild they can cause major trouble. Native to South America, guppies ...

...and guppies eat their young formed in 1998 and have put out 10 records since their debut, to a loyal, if not dismal fan following. Now, before you send in letters to my editor about starting a ...

Male guppies sporting rare colour patterns tend to escape from predators more easily. Researchers removed guppies from rivers in Trinidad, sorted them by colour patterns and then restored the fish so ...