It's been 50 years since "Jaws" ruined that summer, spawning a fleet of increasingly dreadful sequels and knockoffs, turning ...

Researchers documented 34 instances of purported prey-sharing behavior, which suggests orcas may be altruistic and capable of ...

Orcas, often called killer whales, are majestic apex predators of the ocean, and encountering one in the wild is a moment that most will never forget. In this video, we bring you 7 incredible orca ...

The encounter, observed by snorkelers in Norway, “involved repeated episodes of gentle, face-to-face oral contact.” ...

A nimals using tools is always a pretty cool facet of their behavior, from monkeys cracking nuts to elephants sabotaging ...

This is the first documented evidence of its kind of marine mammals fashioning tools out of objects in their environment, ...

Behavioral ecologist Michael Weiss was browsing through new drone footage of the orca pods he studies in the Salish Sea when he spotted one of the killer whales carrying something green in its mouth ...

Killer whales have joined the rare club of animals that can make and use tools, for the first time being observed crafting a kind of brush out of kelp and then using it on fellow pod members.

Scientists have spotted a subset of killer whales using seaweed to scratch each other’s backs, marking the first known identification of “tool” usage by marine mammals. The “southern resident” killer ...

In all the sightings, a weeks-old pilot whale swam by a female killer whale in what scientists call an echelon position, with the young whale located beside and slightly behind the adult orca. In ...

Killer whales are known for their intelligence and power, even an inclination to sink yachts. Now, research is showing how they take down prey that few other animals can. Why it matters: The ...

A killer whale was spotted balancing a salmon on its head. It’s not clear what the behavior means, but orcas were observed doing the same thing in the 1980s.