She watched as an orca held a sunfish by the tail while another orca swam toward the enormous fish and pummeled into it so ...

Whale watchers in Madeira captured the astonishing moment orcas took down the deep-diving marine mammal. The predatory behavior had never been documented in the region. A pygmy sperm whale was ...

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 than ...