In Hungary, ethological research is most often identified with tests on dogs, but novel methodological advances could bring another species, the paradise fish, into the spotlight. Fish are easy to ...

Kōaro are native fish and long-haul swimmers: they migrate deep inland as whitebait, then make the return swim when it’s time ...

Imagine you are a kind of fish called a goby, part of a huge family of more than 2,000 species. Maybe you're of average size for a goby, about three to four inches long. Your longest relative is about ...

Long ago, aquatic animals adapted to live on land, and these first land-dwelling vertebrates are known as tetrapods. This group includes all of the vertebrates that used four limbs and a set of lungs ...

Plenty more fish in the sea? Maybe not for much longer. Overfishing is damaging the genetic diversity of fish to a greater degree than expected, leaving at-risk species vulnerable. It was thought that ...

Fish present an extraordinary range of physiological adaptations shaped by their aquatic environments and evolutionary history. As ectotherms, their metabolic rates, cardiovascular performance and ...

The rapid formation of 500 different species of fish in a single lake, each with specialized ecological roles, resulted from a small but genetically diverse hybrid population. Scientists show the ...

Can a small fish help identify possible treatments for an ultra-rare inherited disease found in an Alabama boy? The genetic disease is XMEA, which progressively weakens the muscles and can affect the ...

Interactions between farmed and wild fish influence the evolutionary trajectories of natural populations and the sustainability of aquaculture. Domestication in controlled environments selects for ...

Add Yahoo as a preferred source to see more of our stories on Google. Biologists from the Massachusetts Division of Fisheries and Wildlife (MassWildlife) caught a fish on the Connecticut River with a ...