Two mass strandings involving hundreds of dolphins in Argentina probably happened because the pods were being hunted by orcas ...

A dolphin murder mystery is playing out on the shores of South America’s Patagonia region: multiple mass strandings have seen scores of dolphins washing up for no easily discernable reason. In one ...

Add Yahoo as a preferred source to see more of our stories on Google. An endangered Southern Resident Killer Whale, an icon of the Pacific Northwest, breaches near Henry Island in Washington State.© ...

Experts look into the 2021 and 2023 dolphin mass stranding events and find that both were being chased by an apex predator.

(CNN) — A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a traditional enemy that’s better known for taking out great white sharks ...

When researchers from the University of British Columbia set out to film the solitary hunting habits of Northern resident killer whales, they expected to see quiet and solitary predators at work.

Captured off the coast of San Diego, the astonishing video pictured above captures the moment that a dolphin is punched on the chin by a killer whale. The dolphin rises above the surface, but the orca ...

In 2021 and 2023, hundreds of dolphins were stranded in shallow waters in San Antonio Bay in northern Patagonia. Some died, but many were returned safely to the sea. But what remained a mystery until ...

The apex predators, also known as orca, have been caught on camera for the first time hunting with Pacific white-sided dolphins in seas off British Columbia, Canada. The two iconic marine mammal ...