Melting Arctic ice has grave implications for the planet. It means rising sea levels and helps lock in higher temperatures — and it also has a dramatic effect on the marine life that has evolved to ...

A discovery of unique killer whale behavior may be the first documented time a marine species has been seen using and creating tools for something not food-related. The finding was made in Washington ...

Orcas are born with powerful bodies and sharp teeth, but they are not born knowing how to hunt. Here’s why they depend so ...

Scientists have once again taken a gander at some bizarre orca behavior, and this time, the results are particularly heartwarming. A study published this month in the Journal of Comparative Psychology ...

The behavior is specific to Northern Resident killer whales, who live in the northeastern part of the North Pacific Ocean Experts call the behavior "beach rubbing" Residents and visitors in British ...

While killer whales (Orcinus orca) can trigger the immediate departure of white sharks (Carcharodon carcharias), extended absences from their aggregation sites are also part of the sharks' natural ...

SEATTLE — Wild orcas on more than 30 occasions in four oceans have attempted to share their prey with people, potentially to develop relationships with humans, researchers have found. In each of the ...

SEATTLE -- Wild orcas on more than 30 occasions in four oceans have attempted to share their prey with people, potentially to develop relationships with humans, researchers have found. In each of the ...

In an unprecedented moment off the coast of Skjervøy, Norway, researchers captured the first-ever documented orca birth in the wild. The stunning footage, shared by Krisztina Balotay, a photographer ...

Source: David Ellifrit, Center for Whale Research/Used with permission. Menopause presents an evolutionary mystery: Why should females spend a significant portion of their lives not reproducing? Only ...