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Orca    音标拼音: ['ɔrkə]
orca
n 1: predatory black-and-white toothed whale with large dorsal
fin; common in cold seas [synonym: {killer whale}, {killer},
{orca}, {grampus}, {sea wolf}, {Orcinus orca}]

Orca \Or"ca\ ([^o]r"k[.a]), prop. n.
The {killer whale} ({Orcinus orca}).
[PJC]



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  • 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 pigmentation; being mostly black on top, white on the bottom and having recognizable white eye patches
  • Orca | National Geographic Kids
    Knocked into the sea, the seal becomes a meal for one of the ocean's top predators—the huge orca, or killer whale Orcas hunt everything from fish to walruses, seals, sea lions, penguins,
  • Killer Whale - NOAA Fisheries
    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 are one of the most recognizable marine mammals, with their distinctive black and white bodies
  • 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 the dolphin family Orcas belong to the group of toothed whales, which includes about 75 other species
  • Orca - National Wildlife Federation
    Learn facts about the orca’s habitat, diet, life history, and more
  • Amazing Orca Moments | BBC Earth - YouTube
    Top of the food chain, highly social and incredibly intelligent – orcas are without a doubt one of the most powerful predators in the world Watch as the aptly nicknamed 'killer whales'
  • Chewed-up orca fins on Russian beach point to cannibalism, and . . .
    Detached orca fins scored with distinctive tooth marks suggest that killer whale cannibalism is happening — and it might explain some complex orca societies
  • Killer whale | Definition Facts | Britannica
    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 synonym for Risso’s dolphin
  • 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 (35mph) Explore the information available for this taxon's timeline
  • 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 hunted in some countries, such as Greenland Different kinds of orcas are called "ecotypes"





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