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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

    Jan 19, 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 …

  3. 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 …

  4. Orca - National Wildlife Federation

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

  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 orcas do not...

  6. 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 …

  7. Orca: Habitat, Diet, Lifespan, Facts & Orca vs Shark

    4 days ago · What Is an Orca? The orca (Orcinus orca) is a marine mammal that belongs to the dolphin family, Delphinidae. Although commonly called “killer whales,” they are technically dolphins. The …

  8. 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 …

  9. Orca – BC Whales | North Coast Cetacean Society

    The common names for orca include ‘killer whale’ , ‘blackfish’ and, more recently, ‘wolves of the sea’. Males typically range from 6 to 8 metres in length and weigh in excess of 6 tonnes.

  10. 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 km/h …