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  1. Orca - Wikipedia

    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 …

  2. Facts about orcas (killer whales) - Whale & Dolphin Conservation USA

    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 …

  3. Killer whale | Definition & Facts | Britannica

    Dec 2, 2025 · 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 …

  4. Orcas (Killer whales) | National Geographic

    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...

  5. These Orcas Are on the Brink—And So Is the ... - Scientific American

    6 hours ago · But orca poop is worth the effort because it is a data treasure trove. With just a pea-size glob of scat, biologists can genetically decode which individual whale produced the sample.

  6. Killer Whale | NOAA Fisheries

    Aug 18, 2025 · 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 …

  7. Orca (Orcinus orca) | U.S. Fish & Wildlife Service

    Killer Whales are distinctively marked, with a black back, white chest and sides, and a white patch above and behind the eye. Calves are born with a yellowish or orange tint, which fades to white. Killer …

  8. Orca - National Wildlife Federation

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

  9. Learn About Orcas – OrcaLab

    They are known as Orcas, Killer Whales or – off the west coast of North America – Blackfish. They are found in all of the world’s major oceans, covering all latitudes, and inhabit both coastal waters and …

  10. Killer whale - IWC

    Killer whales, also known as orcas, are an iconic species, long revered by various aboriginal cultures and frequently the stars of animal performances at marine parks. The species has recently made …