Among these, some fish stand out not just for their colors but also for their unusual shapes ... shaped fish that inhabit our ...

Native to Southeast Asia, a tiny freshwater fish packs a surprising ... this wily little fish occupies its own unique niche. Danionella cerebrum, pictured above, produces some of the loudest ...

These unique fish have the nickname "iridescent shark catfish," a seemingly ill-suited comparison for a toothless, freshwater fish. The nickname arises from its tendency to swim close to the ...

In lab-scale experiments, the team has shown that small freshwater fish could be maintained for ... the organisms synthesise and accumulate unique carotenoid pigments, the team has found.

“Fire, drought and reckless water policies have made life really tough for these little fish. We’ve already lost seven of California’s unique freshwater fish species to extinction, and we shouldn’t ...

Freshwater mussels, also known as clams ... Mussels also have this amazing and unusual lifecyle that includes fish as a host. Glochidia (or mussel larvae) attach themselves to the gills of fish, where ...

“We’ve already lost seven of our state’s unique freshwater fish species to extinction, and it’d be a shame for California to lose any more,” said Jeff Miller, a conservation advocate at the Center.

A 300kg (661lb) stingray caught in the Mekong river in Cambodia is the biggest freshwater fish ever documented, scientists say. It unseated the previous record-holder, a 646lb (293kg) Mekong giant ...

A report has warned of a "catastrophic" decline in freshwater fish, with nearly a third threatened by extinction. Conservation groups said 80 species were known to have gone extinct, 16 in the ...

Arkansas Game and Fish Commission is offering the unique opportunity to angle for Alligator Gar with a trophy permit program. The Alligator Gar is among the largest freshwater fish species in ...