Luis Miguel Gutierrez Bringas, a sea-diving tour operator, captured video of a massive sunfish in its natural habitat off the coast of Mexico.

"Twins! She has another baby," Judith Pardo-Pérez, a paleontologist at the University of Magallanes in Chile who first ...

The specimens were the bycatch of a fishing vessel in the South China Sea, which researchers later bought to study.

These are the world’s longest-lived freshwater fish. Some reach 127 years old, a feat previously thought impossible for ...

"I've seen a lot of strange insects, but this has to be one of the most peculiar-looking ones I've seen in a while," said one ...