Scientists have discovered that most freshwater fish may have originated in ancient oceans, not rivers. Fossils and DNA now reveal a surprising evolutionary journey that reshapes biology.

The invasive species has become a threat to the fishers whose livelihoods depend on the native fish population in the Deduru ...

Researchers retrieved reef monitoring devices that had been placed in deep coral reefs in Guam. The devices were placed up to 330 feet below the surface.

A small fossil reveals that the largest freshwater fish, Otophysans, emerged in the sea, not in rivers, changing the ...

A team of environmental experts, Indigenous rangers and conservation detection dogs is working on recovering the population ...

Whether a caught fish is released back into the water or removed for consumption depends on more than just the fish species ...

Scientists are unsure how a Chinese mitten crab made its way to one of Oregon's largest rivers, but population control is ...

Most of the seafood Americans eat comes from abroad — and that means they’re exposed to a higher level of “forever chemicals,” or PFAS, through contaminated fish, according to a new study released ...

A fish species not recorded in the wild for more than 20 years was rediscovered in Bolivia, providing a boost for ...

Austral, a Chilean salmon farming business, is claiming to now be raising antibiotic-free salmon. If the claim is true, it would put the company one up on Alaska ...

Southeast Asia’s Mekong River is one of the world’s most diverse and productive freshwater ecosystems, home to more than ...