A biologist at Washington University in St. Louis has shown that for some fish species, females prefer males with larger sexual organs, and actually choose them for mating. That does not exclude males ...

In a new meta-study, experts have published ground-breaking findings on the effects of climate change for fish stock around the globe. Because fish that are ready to mate and their young are ...

In many fish species body size plays an important role in sexual selection. Large individuals are preferred mating partners because they can enhance offspring survival by providing better quality ...

Pharmaceuticals and household chemicals in rivers and streams may be affecting how fish mate and spawn, scientists warn, even when the substances are not present at levels high enough to cause visible ...

Domino Joyce has received funding from the Leverhulme Trust, and NERC. The males of some species go to extraordinary lengths to attract females – but some simply cheat. Take African cichlid fish. Many ...

"Each spring, all adults of the species migrate to one site, the Colorado River Delta in the uppermost portion of the Gulf [of California], to form one spawning aggregation of several million fish," ...

NEWPORT, Ore. – A new study of the genetic profiles of wild and hatchery coho salmon demonstrates important distinctions in how the two types of fish form mating pairs. These findings by Oregon State ...

Residents of Tampa, Florida have reported hearing strange noises coming from the bay for years, and now scientists believe it may be fish mating — very loudly, according to reports. The deep, ...