Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their ...

Killer whales, also known as orcas, are incredibly intelligent apex predators. As such, researchers have been observing the ...

A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of ...

A new study reveals killer whales fashion kelp into tools and use them to groom each other, a possible first for marine ...

Only 92 whale species can be found swimming in the deep, blue seas. One of the most recognizable is the orca, commonly known as the killer whale. These apex predators are the only living species ...

It’s easy to be misunderstood with the word “killer” in your name. Still, this year seemed to be a wild one for killer whales. From “attacking” and sinking several boats off southwestern ...

In 1992, a colleague had returned from a fishing trip in Baja with a story about seeing two killer whales attacking a whale shark. But Ms. Schulman-Janiger was never able to confirm the event.