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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. 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 …

  3. Killer whale | Definition & Facts | Britannica

    6 days ago · 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 …

  4. 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. …

  5. 20 Killer Whale Facts About Orcas - Fact Animal

    Dec 14, 2020 · Orcas (Orcinus orca), often called Killer Whales, are actually the worlds biggest dolphins and are members of the Delphinidae family which also includes species such as …

  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 …

  7. Top 10 facts about Orcas - WWF

    Discover more about orcas aka killer whales, How big orcas are and what an orca eats along with the issues and threats they are facing and how you can help.

  8. These Orcas Are on the Brink—And So Is the Science That Could …

    Dec 16, 2025 · Inside the desperate rush to save the southern resident killer whales

  9. Orca: The Killer Whale - Ocean Info

    Is the orca classified as a whale or dolphin? Orcas have a lot of characteristics in common with whales, but taxonomically, they’re actually dolphins! They are actually the largest member of …

  10. Orcas: Facts about killer whales - Live Science

    Jan 28, 2025 · Orcas are often called killer whales, even though they almost never attack humans. They live in every ocean around the world, from the warm waters near the equator to …