While well-documented in the Northern Hemisphere and Antarctica, much less is known about killer whales (Orcinus orca) in ...

A northwest Australia killer whale captured on Ningaloo Reef. Photo courtesy John Totterdell (CETREC WA).While well ...

The population of Bigg’s killer whales — which is believed to be in the hundreds — has grown since the government stopped ...

The most recent census found 73 southern resident killer whales. Of those, 22 were observed to be in poor condition. Since ...

Killer whales are one of the most intelligent animals; only humans have a larger brain relative to their body size, according ...

A new report calls for urgent and bold action to aid in the recovery of endangered southern resident killer whales. Despite two decades of protection under both Canadian and U.S. legislation, this ...

These incidents, documented across four different oceans, saw orcas approaching humans on boats, in the water, and even ...

KILLER whales have been spotted giving gifts to humans in “extremely unusual” behaviour, baffled scientists say. Dozens of instances of orcas approaching humans with offerings have ...

Orcas have long been revered for their intelligence, adaptability, and group-hunting strategies. But one scientific review ...

Kayleigh Nicole Grant, a pro ocean diver, detailed a very close encounter with orca whales, deeming it "some of the best 30 ...

Using sightings over four decades, researchers have pinpointed three main orca habitats off Australia, with key differences ...

In a baffling show of generosity, killer whales across the globe are giving fish to humans—and scientists are racing to ...