Nicknamed the 'Twilight Zone' fish due to its hunting grounds deep within the mesopelagic zone, a murky region of ocean lying between 650 to 3,300 feet below the surface, the longnose lancetfish ...

Researchers caught a close-up video of a flying sea pig (aka, a sea cucumber), and it has what looks like 50 tiny hands.

A giant mosasaur fossil vertebra discovered in Mississippi may belong to one of the largest sea predators ever found.