Experts speculate that orcas may be playing when they ram boats so hard they sink—a phenomenon that’s mostly been documented ...

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.

Killer whales have attacked yachts off the coast of Spain and Portugal on several occasions in the past few weeks, causing ...