| orangutan.org | Orangutan Foundation International |
| gorillafund.org | Dian Fossey Gorilla Fund International |
| asp.org | American Society of Primatologists |
| rootsandshoots.org | Home - Roots & Shoots : Engaging and empowering youth with service learning |
| ifaw.org | International Fund for Animal Welfare (IFAW) |
| hsus.org | Humane Society of the United States |
| simiansociety.org | The Simian Society of America |
| silvery.org.au | Silvery Gibbon Project |
| projectprimate.org | Project, Primate, Inc. |
| poundhill.net | Orang-Outang, Orang-Utan or Orangutan |
| umn.edu | www.tc.umn.edu/ |
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