Learn why some orcas, commonly known as killer whales, are sharing their prey with humans.

A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of ...

Killer wh ales appear to be inviting humans for lunch, a new study suggests. The research investigated unusual occurrences of ...

The whales use quick body movements to tear pieces of bull kelp for use as tools, perhaps the first known toolmaking by a marine mammal.

Killer whales have been caught on video breaking off pieces of seaweed to rub and groom each other, scientists announced ...

Killer whales appear to be inviting humans for lunch, a new study suggests. The research investigated unusual occurrences ...

The whales mainly eat Chinook salmon, whose numbers have plummeted due to overfishing, climate change, habitat destruction and other forms of human interference.

Killer whales have been caught on video breaking off pieces of seaweed to rub and groom each other, scientists announced Monday, in what they said is the first evidence of marine mammals making ...

Scientists have documented what might be the first case of friendly interactions between killer whales and smaller cetaceans. Here's what they think is going on. Pacific white-sided dolphins swim ...

On a cold January day I was surrounded by hundreds of black-and-white killer whales— Orcinus orca, not a whale but rather the largest dolphin—streaking like wolves through the waters of Norway ...

Whales travel through the ocean, lunging, leaping, and playing, with grace and swiftness that belie their huge size. The ...