Lots More Information

Related HowStuffWorks Articles

• How Baleen Whales Work
• How Shark Attacks Work
• How Walruses Work
• How Whales Work
• Narwhal
• Seal
  
• Marine Mammal Quiz
  

More Great Links

• AnimalPlanet.com
• Harry the Sea Lion
• SeaWorld/Busch Gardens Animal Information
• The Charles Darwin Foundation: Sea Lion Monitoring and Conservation
• The Marine Mammal Center
  

Sources

• "2007 IUCN Red List." International Union for Conservation of Nature and Natural Resources. 2007. (7/1/2008)
  http://www.iucnredlist.org/search/search-basic
• "Endangered Marine Mammals." The Marine Mammal Center. (7/1/2008)
  http://www.marinemammalcenter.org/learning/education/mammalinfo/endanger.asp#top
• "Fur Seal." Encyclopedia Britannica. 2008. (7/1/2008)
  http://www.britannica.com/EBchecked/topic/222512/fur-seal
  
• Higden, Jeff et al. "Phylogeny and divergence of the pinnipeds (Carnivora: Mammalia) assessed using a multigene dataset." BMC Evolutionary Biology. 11/9/2007. (7/1/2008)
  http://www.biomedcentral.com/1471-2148/7/216"
  
• Marine Mammal Classification." The Marine Mammal Center. (7/1/2008)
  http://www.marinemammalcenter.org/learning/education/mammalinfo/classification.asp
  
• "Pinniped." Encyclopedia Britannica. 2008. (7/1/2008)
  http://www.britannica.com/EBchecked/topic/461139/pinniped
  
• "Pinnipeds: Seals, Sea Lions, and Walruses." National Oceanic and Atmospheric Administration's National Marine Fisheries Service's Office of
• Protected Resources. (7/1/2008)
  http://www.nmfs.noaa.gov/pr/species/mammals/pinnipeds/
• "Seal." Encyclopedia Britannica. 2008. (7/1/2008)
  http://www.britannica.com/EBchecked/topic/530868/seal
• "Seals, Sea Lions, and Walruses." SeaWorld Education Department. (7/1/2008)
  http://www.seaworld.org/just-for-teachers/guides/pdf/s&sl-4-8.pdf
• "Sea Lion." Encyclopedia Britannica. 2008. (7/1/2008)
  http://www.britannica.com/EBchecked/topic/530626/sea-lion
• "Sea lions and seals--what's the difference?" San Diego Zoo's Animal Bytes. (7/1/2008)
  http://www.sandiegozoo.org/animalbytes/t-sea_lion.html
• "The Pinnipeds: Seals, Sea Lions, and Walruses." The Marine Mammal Center. 1/2001. (7/1/2008)
  http://www.marinemammalcenter.org/learning/education/pinnipeds/pinnipeds.asp
• "Walrus." Encyclopedia Britannica. 2008. (7/1/2008)
  http://www.britannica.com/EBchecked/topic/635052/walrus
• "What's the difference between a seal and a sea lion?" North Carolina Aquariums. 10/15/2005. (7/1/2008)
  http://www.ncaquariums.com/askaquarium/seal.htm