This is only the second time the species has been recorded while alive. “I thought it was A.I.,” says fish biologist Kory Evans.

Scientists leading a shark research mission happened across a stunningly rare fish, marking the first time the species has been clearly photographed.

Deep below the surface of a river in northern Brazil, a “shy” creature tucked its “armored” body into a rocky crevice. Divers ...

Not everyone is a fan of snails, but there’s no denying the benefits they bring to a freshwater aquarium. Aquatic snails are ...