Orcas are an apex predator. They hunt in packs, using their wits to outsmart their prey and their speed and strength to overpower it. Though they pose no threat to humans (in the wild, anyway), if you ...

Orcas have long been revered for their intelligence, adaptability, and group-hunting strategies. But one scientific review spanning two decades has revealed a little-known, yet intriguing behavior.

From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are displaying some fascinating — and sometimes terrifying — behaviors. When you ...