Scientists found evidence that killer whales may hunt and eat other killer whales, revealing new insights into how ...

Hunting killer whales always eat the animals they kill, typically leaving behind only a few low-energy parts, such as fins. "Also, if it was just aggression, they wouldn't bother to tear off the fin," ...

The grim task of clearing hundreds of washed-up whale carcasses was under way in New Zealand Tuesday, with the beach closed over fears the bodies will fill with gas and explode as they decompose. The ...

Researchers come 'eye-to-eye with a killer whale' during their Antarctic expedition.

Off the coast of British Columbia, dolphins lead killer whales to salmon and earn their share of lunch, a new study reveals. A new study is the first to document cooperative hunting between orcas and ...