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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- "Odobenus rosmarus, Walrus." MarineBio.org. (Oct. 20, 2008)http://marinebio.org/species.asp?id=184
- Schliemann, Harald. "Grzimek's Encyclopedia of Mammals." Vol IV. McGraw-Hill. 1990.
- "Walrus." SeaWorld/Busch Gardens Animals. Busch Entertainment Corporation. (Oct. 20, 2008).http://www.seaworld.org/animal-info/info-books/walrus/index.htm
- "Walrus." Arctic Studies Center. Smithsonian National Museum of History. (Oct. 20, 2008)http://www.mnh.si.edu/arctic/html/walrus.html
- "Walrus anatomy." Canadian Geographic. (Oct. 20, 2008)http://www.canadiangeographic.ca/Magazine/ma02/walrusanatomy.asp