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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. Killer whale | Definition & Facts | Britannica

    Dec 25, 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 …

  3. Facts about orcas (killer whales) - Whale & Dolphin Conservation …

    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. …

  4. 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 …

  5. 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 …

  6. Orca - National Wildlife Federation

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

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

    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 …

  8. 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 …

  9. Orcas are adopting terrifying new behaviors. Are they getting …

    Dec 23, 2025 · From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are displaying some fascinating — and sometimes …

  10. 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 …