The U.S. Fish and Wildlife Service has changed definitions of certain terms in the Endangered Species Act, reducing ...

The false killer whale is a large member of the Delphinidae family, or dolphins. Members of this family include all dolphin species, as well as other larger species, such as killer whales, long-finned ...

Tsuchi, mother to one living daughter, has lost at least eight calves, researchers believe ...

Whales observed in Salish Sea off western North America Behavior is a rare instance of tool use by marine mammals It may promote skin health and strengthen social bonds June 24 (Reuters) - Killer ...

While the taxonomic status of killer whale ecotypes (Orcinus orca) and common dolphin subspecies (Delphinus delphis) has long been debated, recent research suggests newly recognized subspecies ...

An incredibly rare albino orca was caught on camera leaping out of the ocean, leaving an impassioned wildlife photographer “shaking with excitement.” Japanese freelance photographer Noriyuki Hayakawa ...