Marine biologist Alexander Semenov specializes in invertebrates and is the head of the divers’ team at Moscow State University’s White Sea Biological Station where he organizes and manages all sorts ...

2 rarest underwater creatures ever filmed We expected a normal day on the water. What we got instead were two of the rarest creatures you could ever hope to see. The first one looked almost alien.

The mention of giant underwater creatures usually brings to mind mythological monsters. The great kraken, ancient leviathans, and if that fossil of a creature with 45 arms is a real-life Cthulhu. As a ...