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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. Orca - National Wildlife Federation

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

  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. 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 …

  6. 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 grampuses, but that term is now a …

  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 km/h …

  8. Orcas are adopting terrifying new behaviors. Are they getting smarter?

    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 terrifying — …

  9. Orca (Killer Whale)

    The orca, or killer whale, with its striking black and white coloring, is one of the best known of all the cetaceans. It has been extensively studied in the wild and is often the main attraction at many sea …

  10. Killer Whale (Orca) Facts - Ocean Conservation Society

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