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

Orcas, better known as killer whales, sit atop the aquatic food chain as one of the most lethal apex predators on Earth.

Over two decades, orcas have been observed offering prey to humans in 34 recorded encounters across the globe. From stingrays ...

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

These incidents, documented across four different oceans, saw orcas approaching humans on boats, in the water, and even standing on shore, offering a variety of items such as fish, mammals, birds, ...

A 13-day survey conducted in the Clarion-Clipperton Zone (CCZ) found a large variety of marine life living in the region, ...

Researchers examining 20 years of data on orca sightings have discovered a worrying trend linked to the receding ice, ...

Two killer whales have been caught "kissing" on camera in a fiord in northern Norway. A group of snorkelers-turned-citizen-scientists captured the moment last October, and now the internet is going ...

Across oceans, wild orcas are surfacing near humans with offerings from fish to turtles in their jaws. Is this communication, empathy, or something stranger? Scientists are puzzled. The story explores ...

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