"... Its prevalence is extremely low — it may appear and then not be observed again for several years," the study’s co-author ...

The apex predators have offered up fish, birds, turtles and whales to humans around the world, according to the study.

Researchers have documented orcas seemingly gifting rays, seals and fish to scientists and divers, which could suggest they ...

Orca-T shows significant promise in reducing chronic graft-vs-host disease and improving survival rates in allogeneic ...

Killer whales are intelligent creatures, and scientists have recently discovered a new behavior among the species. Despite ...

Orcas, also known as killer whales, are among the most intelligent and social of marine mammals. They live in tight-knit pods ...

Wild orcas across four continents have repeatedly floated fish and other prey to astonished swimmers and boaters, hinting that the ocean’s top predator likes to make friends. Researchers cataloged 34 ...

Kamea, an 11-year-old female, was part of the last generation of orcas to live in captivity at the theme park.

Killer whales have joined the rare club of animals that can make and use tools, for the first time being observed crafting a ...

The Oregon Department of Fish and Wildlife is developing a plan to protect Southern Resident orcas, which were added to the ...

Researchers focused on the Salish Sea have made an intriguing discovery about Orcas. These whales, which have continually ...

Kamea, a killer whale born into captivity in SeaWorld San Antonio, has died after contracting an undisclosed illness, the ...