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

O rcas are easily recognized by their jet-black bodies punctuated with striking white markings, most notably the “eye patch” ...

The Nazca lived between 100 B.C. and A.D. 800 in what scientists call a tropical desert. Yet just offshore, the sea teemed ...

Orcas live in all the world's oceans, from the Arctic Ocean and Antarctica to warmer tropical seas, and in every single one ...

A remarkable artifact has surfaced in the world of archaeology: a 1,600-year-old ceramic vessel in the shape of a Humboldt ...

"Orcas often share food with each other—it's a prosocial activity and a way that they build relationships with each other.

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

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

When researcher Jared Towers set up his cameras underwater to observe a pair of killer whales, he saw something strange.

Killer whales, or orcas, are apex predators known for their intelligence and complex social structures. While wild orcas are not considered a threat to humans and have no recorded fatal attacks, it's ...

Scientists call for better protection of Antarctica’s vulnerable seafloor ecosystem as ship traffic increases around the continent.