In an Australian first, researchers have described a new species of 15-million-year-old fossilized freshwater fish, ...

Brock’s iron shield fish adds to the rich prehistoric history of McGraths Flat, and contributes to its classification as a ...

Deep-sea fish thrive in extreme pressure, darkness, and pollution, revealing new survival mechanisms and threats.

Sturgeon are among the oldest fish on Earth, yet many present-day sturgeon species are at threat of extinction, with 17 of 27 species listed as “critically endangered.” Sporting an armor of five rows ...

Fish can change their teeth quickly, which speeds up their evolution. Cichlids in African lakes show the fastest ...