Scientists have discovered five previously undocumented per- and polyfluoroalkyl substances, also known as "forever chemicals ...

Narrated by acclaimed actor Richard Roxburgh, Killer Whale: Australia’s Megapod explores the lives of a powerful orca ...

Experts say the whales seem to learn to play with boats from a young age. "Believe me: if they wanted to sink the boats, they ...

Grabbing a meal with a friend is way better than dining solo — and killer whales agree. The whales prefer to hunt for herring in pairs, researchers report July 3 in Current Biology. These cetaceans ...

In the waters of the Salish Sea, endangered southern resident killer whales and the struggling Chinook salmon they depend on ...

A group of killer whales were spotted off the coast of California, boaters said. Getty Images/iStockphoto A group of orcas was spotted off the coast of California, leaving boaters “thrilled,” ...

A group of orcas was spotted off the coast of California, leaving boaters “thrilled,” passengers said. On Aug. 26, eight to 10 killer whales were spotted hunting for “their next meal,” according to a ...