The orca (Orcinus orca), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. The only extant species in the genus Orcinus, it is recognizable by its distinct …

Mar 13, 2026 · More than 20 species names have been applied to the killer whale, but a consensus now recognizes only O. orca. Killer whales were formerly referred to as grampuses, but that term is now a …

Scientific studies have revealed many different populations with several distinct ecotypes (or forms) of killer whales worldwide—some of which may be different species or subspecies. They are one of the …

Orcas are highly intelligent, social mammals that have long been a part of marine park entertainment, performing shows for audiences. However, it's become increasingly clear that orcas do not...

A wild orca pod can cover over 99 miles (160 kilometers) a day, foraging and socializing. They were give the name "killer whale" by ancient sailors who saw them preying on large whales. Orcas are still …

Learn facts about the orca’s habitat, diet, life history, and more.

The Killer Whale, or Orca, is a creature of immense power, beauty, and complexity. From its ancient lineage to its sophisticated social structures and diverse hunting strategies, every aspect of its life …

Calves at birth weigh about 180 kg and are about 2.4 m long (8 ft). The Killer Whale's large size and strength make them the fastest marine mammals, often reaching speeds in excess of 56 km/h …

Learn killer facts about killer whales with the latest orca news, articles and features from Live Science.

Learn facts about killer whales (orca), including their size, diet and conservation status, plus insights gained during our 25 years of marine mammal research.