Orca ecotypes often have overlapping ranges, making their distinct characteristics even more surprising. For example, the so-called resident killer whales typically seen in the Pacific Northwest ...

Scientists know of three distinct ecotypes of killer whales—offshore, transients, and residents—that make up the orca population along the California and Oregon coast. But a new study suggests ...

Three ecotypes of killer whale live along the coasts of California and Oregon: ‘residents’, ‘transients’, and ‘offshores’.

A fourth type of Pacific killer whale may live miles offshore from California and Oregon, preying on whales, other dolphins, and sea turtles. ANIMALS Rogue orcas are thriving on the high seas ...

In the Southern Hemisphere, there are five different ecotypes of orca, with those named Type A and Type B1 orcas preferring marine mammals. The researchers wrote in the paper: ...

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 ...