When flipped upside-down, the sharks fall into an involuntary trance, leaving them easy victims for the orcas. Why the sharks ...

A pod of killer whales has found a devastating tactic that helps them sink their teeth into energy-rich shark livers.

Related: ‘She’s a Big One’: A Look Inside California's Great White Shark’s Hotspot Although he’s literally witnessing it, Gauna still seems speculative, perhaps hesitant, to make an affirmative claim ...