Under the Arctic sea ice, fish and plankton live in complete darkness, even in midsummer. Ice floes stop the sun's rays, ...

The Arkansas Game and Fish Commission is urging residents to be mindful of water pollutants to protect endangered species like the Ozark cave fish and Benton County crawfish.

A major new study finds the pace of biological discovery is accelerating, not slowing down, and estimates Earth may harbor ...

Fish farms often contain a wide range of exotic species. Setting traps is one of the best ways to see what lives in the ponds.

Every aquarium owner hopes for one thing. A perfectly clean tank that somehow takes care of itself. It sounds ideal, but ...

Reef fish in different oceans often develop similar color patterns because evolution explores the same set of biological possibilities.

For comparison, the coastline of the USA’s Washington state measures 400 kilometres (250 miles). The cave is 118 metres (379 ...

Sanford Lake will soon be refilling, and biologists say fish that have remained in the river and channels there are poised to produce countless young to repopulate the once burgeoning fisheries.

Scientists discovered some of the oldest bony fish fossils in China. The fossils explain the early history of animals with backbones.

According to the Florida Fish and Wildlife Conservation Commission, the relatively new invasive species is hard to spot ...

A 20-year program partners with Michigan DNR to prevent poaching of the threatened species, which can weigh up to 200 pounds and live to be 100 years old.

A particular photo making the rounds on This Is Alabama’s Instagram shows the kind of fish that can be caught within this ...