Orcas have once again been observed swimming around with dead salmon on their snout as "hats" — and why they do this remains ...

A pod of killer whales has revived a curious trend from the 1980s in which they swim around with dead salmon balanced on ...

In a surprising turn of events, orcas in the northwestern Pacific have brought back an unusual behaviour: wearing dead salmon ...

Footage captured by one shocked onlooker shows four dorsal fins emerging from the water and swimming towards the shore.

Orcas appear to select the youngest fish, work together to flip them upside down, then target the most vulnerable areas of ...

Killer whales have been spotted wearing dead fish on their heads - a look they were seen sporting nearly 40 years ago by ...

Researchers have documented killer whales working as a team to prey on whale sharks in the Gulf of California.

Orcas, better known as killer whales, have been spotted hunting whale sharks, the world's largest shark species, that can ...

Marine biologists documented the never-before-confirmed behavior among orcas living in the Southern Gulf of California.

The whale shark can grow to be the world's largest fish species, so the smaller orcas have figured out how to collaboratively ...

For the first time, scientists have captured video evidence of orcas cooperatively hunting whale sharks, the largest species ...