Rather than attacking pleasure boats or eating seals, Old Thom spends his days swimming with Atlantic white sided dolphins. No one quite knows why. Orcinus orca, or killer whales, are more likely to ...

Orcas have been spotted hunting down an unexpected dinner off the coast of Chile in a particularly brutal way. The matriarch of this orca pod was seen flinging a dusky dolphin into the air during the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. It was an orca ...

It was an orca-versus-dolphin matchup, and the dolphin didn’t stand a chance. In coastal waters near Chile in 2023, a massive female killer whale walloped the much smaller dolphin, sending it flying ...