Ask anyone who’s had encounters with killer whales, and they will tell you just how smart they are. Orcas are incredibly ...

Learn why blue whale calves are prime orca targets and how their massive mothers use slipstreams, allies, and shockwaves to keep them alive.

Pinks, the smallest Pacific salmon species, are booming. That's spelled trouble for other fish species struggling for ...

Robert F. Kennedy Jr. eats steak for breakfast, and has been accused by family members of blending up mice and chickens to feed his hawks and cutting off a dead whale’s head to bring it home. But he ...

Leatherback turtles are unusual among reptiles because they are able to keep their bodies warmer than the surrounding ocean ...

Two groups of killer whales are engaging in a terrifying, bloody cannibalistic war beneath the ocean’s surface, where gangs ...

Fish-eating killer whales in southern Alaska have a diverse, seasonally changing diet featuring salmon and groundfish, according to a published study in the journal Ecosphere. The types of fish ...

Hunting killer whales always eat the animals they kill, typically leaving behind only a few low-energy parts, such as fins. "Also, if it was just aggression, they wouldn't bother to tear off the fin," ...

Orcas don’t have any natural predators, so how did this happen? The tooth marks, it turned out, were distinctive – they were from an orca. The DNA analysis of the fins that fo ...

Detached orca fins scored with distinctive tooth marks suggest that killer whale cannibalism is happening — and it might ...