An international team of biologists, led by Wageningen University & Research, has demonstrated that predators have a direct ...

Guppies breed using internal fertilisation (copulation) and as a result are anatomically quite different from the thousands of other fish species ... site (the ovary), in a sort of “resistance”.

A properly dressed male guppy, with its gaudy blue spots and brilliant splashes of orange, can't help but stand out. But for a fish that spends its life swimming among predators, it seems that ...

The guppy studied is the tiny fish in the bottom-left corner. Also shown are the two predators researchers used to stress the guppy out: a heron and a blue acara cichlid. The guppy studied is the ...

“So this could have an important [consequence] on the daily life of fish.” Santacà and her colleagues first determined that guppies (Poecilia reticulata) would consistently swim through the ...

One such species -- the South American guppy (Poecilia vivipara) -- is a small freshwater fish which looks nowhere equipped to cross the distance between the mainland and the Fernando de Noronha ...