According to their results recently published in the journal Ecology and Evolution, the culprit is clear: a killer whale ...

Over time, that name morphed into "killer whales." Scientists don't know whether orcas kill for fun. The marine mammals do some things, like killing and tossing dead porpoises in the air ...

The animal’s dorsal fin was still floppy, indicating it was less than 24 hours old, according to news reports.

Huber and Varni, project volunteers, said the orcas, or killer whales, were not present. But killer whale teeth rakes were evident on much of the estimated 25-foot carcass. Schulman-Janiger ...

Based on DNA analysis from the bite wounds on the carcass of a large white shark washed ashore near Portland in Victoria in ...

An orca calf less than 24 hours old has been spotted in a rare sighting of a newborn killer whale in Western Australia. The animals are regularly seen off Bremer Bay in summer, but calves are ...

drawing attention to the critically endangered southern resident killer whales. Researchers say this behavior is a sign of grief. Dr. Deborah Giles, science and research director at Wild Orca ...

Killer whales have large, complex brains. They teach hunting techniques to their young, adapt to new prey, and communicate using unique dialects within their pods. Recent incidents show orcas ...