Why are orca called killer whales?

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What's the difference: seal or sea lion?

What's the difference: seal or sea lion?

From ears to fur, seals and sea lions may be related, but they certainly aren't the same. Prove your knowledge on these cousins at HowStuffWorks.


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Sources

  • American Cetacean Society. "Orca (Killer Whale)." American Cetacean Society Fact Sheet. 2008. http://www.acsonline.org/factpack/KillerWhale.htm
  • CNN. "Clash of the titans: Whales vs. Shark." Oct. 8, 1997. http://www.cnn.com/EARTH/9710/08/whale.vs.shark/
  • PBS. "Killers in Eden." http://www.pbs.org/wnet/nature/killers/hunters.html
  • Roberts, Callum. The Unnatural History of the Sea. Island Press. 2007
  • Russian Orcas. "Killer Whale Acoustic Behavior." http://www.russianorca.com/Orcas/sounds_eng.htm
  • Russian Orcas. "Killer Whale Biology." http://www.russianorca.com/Orcas/orcas_eng.htm
  • Russian Orcas. "Killer Whale Ecology and Behavior." http://www.russianorca.com/Orcas/behavior_eng.htm
  • National Geographic. "Killer Whale (Orca)." http://animals.nationalgeographic.com/animals/mammals/killer-whale.html
  • National Parks Conservation Association. "Killer Whale (Orcinus orca)." http://www.npca.org/marine_and_coastal/marine_wildlife/orca.html
  • The Marine Mammal Center. "Orca or Killer Whale." NOOA. Jan., 2002. http://cordellbank.noaa.gov/documents/wildlife/orca.pdf
  • Visser, Dr. Ingrid. Orca Research Org. http://www.orcaresearch.org/name.htm
  • Zimmerman, Steven T. "Orca: Wildlife Notebook Series." Alaska Department of Fish and Game. 1994. http://www.adfg.state.ak.us/pubs/notebook/marine/orca.php