MassWildlife biologists caught a fish on the Connecticut River with a rare genetic mutation that dramatically changes its ...

"The fish are an irreplaceable remnant of the native cutthroat trout." ...

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 ...

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 ...

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 ...

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

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

Scientists show the extraordinary diversity of cichlid fish in Africa’s Lake Victoria was made possible by ‘genetic recycling’ - repeated cycles of new species appearing and rapidly adapting to ...

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 ...