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Sources
- Arthur, Charles. "Wallowing in sunscreen sweat is secret of hippos' silky skin regime." The Independent. May 27, 2004. (Oct. 6, 2008)http://www.independent.co.uk/news/science/wallowing-in-sunscreen-sweat-is- secret-of-hippos-silky-skin-regime-564868.html
- Grossi, Mark. "Hot property: Hippo sweat studied for human use." Scripps Howard News Service. The San Diego Union-Tribune. Aug. 31, 2005. (Oct. 6, 2008)http://www.signonsandiego.com/uniontrib/20050831/news_1c31hippo.html
- Harlow, John. "Big sweat as human hippo Brady Barr gets stuck in mud." The Sunday Times. Jan. 27, 2008. (Oct. 6, 2008)http://www.timesonline.co.uk/tol/news/uk/science/article3257296.ece
- "Hippopotamus." African Wildlife Foundation. (Oct. 6, 2008)http://www.awf.org/content/wildlife/detail/hippopotamus
- "Hippopotamus." National Geographic. (Oct. 6, 2008)http://animals.nationalgeographic.com/animals/mammals/hippopotamus.html
- "Mammals: Hippopotamus." San Diego Zoo. (Oct. 6, 2008)http://www.sandiegozoo.org/animalbytes/t-hippopotamus.html
- Hughes, Catherine D. "Hippopotamuses." National Geographic Kids. (Oct. 6, 2008)http://kids.nationalgeographic.com/Animals/CreatureFeature/Hippopotamus/
- Saikawa, Yoko, et al. "The red sweat of the hippopotamus." Nature. Vol. 429. May 27, 2004.
- "Scientists find missing link between the whale and its closest relative, the hippo." UC Berkeley. Daily Science News. Jan. 25, 2005. (Oct. 6, 2008)http://www.sciencenewsdaily.org/story-2806.html























































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