The ocean has a definite top predator. Sharks dominate discussions, in part due to their fearsome hunting abilities, and in ...

Orcas have been observed ramming boats and even sinking some of them. But this isn't new. Here's a video from 2014 of a pod of orcas chasing a speedboat.

In another wild instance of orcas attacking ships, three orcas were filmed off the coast of Lisbon, Portugal, going full send on a small boat until the rudder was detached and the vessel started to ...

The historian Procopius described how a creature called Porphyrios terrified sixth-century sailors for 50 years. But what was ...