When researcher Jared Towers set up his cameras underwater to observe a pair of killer whales, he saw something strange. She closed her mouth, paused, apparently watching for Towers’ reaction and hung ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Orcas (Orcinus orca) don’t appear to be big fans of yachts, but ...

Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their prey with humans, according to research published in the Journal of ...