There is a long-standing tension between aquarium hobbyists and marine biologists over how to interpret fish behavior.

An unexpected haul of nearly 500 fossilized fish in Egypt provides an unprecedented picture of how sea life rebounded from ...

Ancient fish fossils from Egypt fill a 10-million-year gap, revealing how modern ocean fish emerged after the asteroid ...

Researchers have developed a fish-like robot that shows how some species of modern fish are able to walk on land, and could help unravel how early vertebrates evolved similar abilities hundreds of ...

When an upstate New York salmon farm went out of business, nonprofits had days to find a way to catch, refrigerate and clean more than 13,000 fish. By Sarah Maslin Nir The offer was too good for the ...