Are zoos good or bad for animals?

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10 Weird Ways Organisms Reproduce

10 Weird Ways Organisms Reproduce

Nature has come up with many ways to increase populations. Learn more about the weird ways organisms reproduce at HowStuffWorks.


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  • Booth, William. "Naked Ape New Zoo Attraction." The Washington Post. March 14, 1991.
  • "Damage Control In Zoo Deaths." CBS. Sept. 26, 2003.http://www.cbsnews.com/stories/2003/09/26/eveningnews/main575409.shtml
  • "Fact Sheet on Zoos." Naturewatch. June 2004. (Sept. 8, 2008) http://www.naturewatch.org/resources/FactSheets/FS_Zoos.pdf
  • Farinato, Richard. "Too Many Deaths at the Zoo." The Washington Post. Humane Society of the United States. Feb. 23, 2003. (Sept. 5, 2008) http://www.hsus.org/wildlife/wildlife_news/too_many_deaths_at_the_zoo.html
  • Fordahl, Matthew. "Polar bears' pacing puzzles zookeepers." The Associated Press. Sept. 5, 1996. (Sept. 5, 2008) http://seattlepi.nwsource.com/getaways/090596/pace05_top.html
  • Fravel, Laura. "Critics Question Zoos' Commitment to Conservation." National Geographic News. Nov. 13, 2003. (Sept. 3, 2008) http://news.nationalgeographic.com/news/2003/11/1113_031113_zoorole.html
  • Holland, Megan. "Zoo board agrees to let Maggie go." Anchorage Daily News. June 6, 2007. (Sept. 5, 2008) http://dwb.adn.com/news/alaska/story/8953370p-8869210c.html
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  • Lovgren, Stefan. "U.S. Zoos Airlift Rare Antelopes to Africa." National Geographic News. Feb. 18, 2004. (Sept. 5, 2008) http://news.nationalgeographic.com/news/2004/02/0218_040218_bongos.html
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  • Mott, Maryann. "More U.S. Zoos Closing Elephant Exhibits." National Geographic News." March 2, 2006. (Sept. 5, 2008) http://news.nationalgeographic.com/news/2006/03/0302_060302_elephants.html
  • "Photo in the News: Elephant Shuns Jumbo Treadmill." National Geographic News. May 19, 2006. (Sept. 5, 2008) http://news.nationalgeographic.com/news/2006/05/060519_elephant.html
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  • Trivedi, Bijal P. "Zoos Use New Tricks to Stimulate Animals." National Geographic Today. Aug. 27, 2002. (Sept. 5, 2008) http://news.nationalgeographic.com/news/2002/08/0827_020827_TVzoos.html
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