Alterman, L., G. A. Doyle, and M. Kay Izard. Creatures of the Dark: The Nocturnal Prosimians. New York: Plenum Press, 1995. Print.
Baker, Kate C. et al. ‘Survey of Environmental Enhancement Programs for Laboratory Primates’. American Journal of Primatology 69.4 (2007): 377–394. Web.
Bartlett, Amanda, James Edward Brereton, and Marianne Sarah Freeman. ‘A Comparative Multi-Zoo Survey Investigating the Housing and Husbandry of Callimico Goeldii’. Journal of Zoological and Botanical Gardens 5.1 (2024): 66–79. Web. <https://mdpi-res.com/jzbg/jzbg-05-00005/article_deploy/jzbg-05-00005.pdf?version=1704943171>.
Bartlett, Amanda, Lena Grinsted, and Marianne Sarah Freeman. ‘Behaviour, Furnishing and Vertical Space Use of Captive Callimico (Callimico Goeldii): Implications for Welfare’. Animals 13.13 (2023): n. pag. Web.
Bashaw, Meredith J., Rebecca L. Gullott, and Emily C. Gill. ‘What Defines Successful Integration into a Social Group for Hand-Reared Chimpanzee Infants?’ Primates 51.2 (2010): 139–147. Web.
---. ‘What Defines Successful Integration into a Social Group for Hand-Reared Chimpanzee Infants?’ Primates 51.2 (2010): 139–147. Web.
Bassett, Lois et al. ‘Effects of Training on Stress-Related Behavior of the Common Marmoset (Callithrix Jacchus) in Relation to Coping With Routine Husbandry Procedures’. Journal of Applied Animal Welfare Science 6.3 (2003): 221–233. Print.
Beck, Benhamin B. et al. ‘Losses and Reproduction in Reintroduced Gold Lion Tamarins Leontopithecus Rosalia’. Prcscrv. Trust 27 (1991): 50–61. Web. <https://repository.si.edu/bitstream/handle/10088/3799/Beck%201991_1.pdf?sequence=3>.
Beck, Benjamin B. Unwitting Travelers: A History of Primate Reintroduction. Berlin, Maryland: Salt Water Media, 2018. Print.
Beck, Benjamin B., and Michael L. Power. ‘Correlates of Sexual and Maternal Competence in Captive Gorillas’. Zoo Biology 7.4 (1988): 339–350. Print.
Benirschke, Kurt, Morris Animal Foundation, and Zoological Society of San Diego. Primates: The Road to Self-Sustaining Populations. New York: Springer-Verlag, 1986. Print.
Bennett, Jane. ‘A Glut of Gibbons in Sarawak – Is Rehabilitation the Answer? By Bennett, Jane’. Oryx 26.3 (1992): 157–164. Web. <https://data-journalarchives-jisc-ac-uk.oxfordbrookes.idm.oclc.org/view?pubId=cuparchiveORX26_03S0030605300023590apdf&amp;tab=title&amp;jid=33313632333733323236%23333538393435303136>.
Blamford, A., G.M. Mace, and N. Leader-Williams. ‘Designing the Ark: Setting Priorities for Captive Breeding’. Conservation Biology 10.3 (1996): 719–727. Web. <http://www.jstor.org.oxfordbrookes.idm.oclc.org/stable/2387094>.
Bloomstrand, M. et al. ‘Objective Evaluation of a Behavioral Enrichment Device for Captive Chimpanzees (Pan Troglodytes)’. Zoo Biology 5.3 (1986): 293–300. Print.
Boinski, S. et al. ‘The Behavioural Profile and Environmental Enrichment of a Squirrel Monkey Colony’. Laboratory Primate Newsletter 33.4 (1994): n. pag. Web. <http://www.brown.edu/Research/Primate/lpn33-4.html#boin>.
Braverman, Irus. ‘Zoo Registrars: A Bewildering Bureaucracy’. 21.165 (2010): 2012–2035. Web. <https://oxfordbrookes.on.worldcat.org/oclc/759987490>.
---. ‘Zoo Registrars: A Bewildering Bureaucracy’. 21.165 (2010): 2012–2035. Web. <https://oxfordbrookes.on.worldcat.org/oclc/759987490>.
Brent, Linda. The Care and Management of Captive Chimpanzees. v. 2. [Chicago, Ill.]: American Society of Primatologists, 2001. Print.
---. The Care and Management of Captive Chimpanzees. v. 2. [Chicago, Ill.]: American Society of Primatologists, 2001. Print.
---. The Care and Management of Captive Chimpanzees. v. 2. [Chicago, Ill.]: American Society of Primatologists, 2001. Print.
---. The Care and Management of Captive Chimpanzees. v. 2. [Chicago, Ill.]: American Society of Primatologists, 2001. Print.
Britt, A., and B.R. Iambana. ‘Can Captive-Bred Varecia Variegata Variegata Adapt to a Natural Diet on Release to the Wild?’ International Journal of Primatology 24.5 (2003): n. pag. Web. <http://oxfordbrookes.idm.oclc.org/login?url=http://search.ebscohost.com/login.aspx?direct=true&amp;db=a9h&amp;AN=11185543&amp;site=ehost-live>.
Bryant, CE. ‘Effects of Different Environmental Enrichment Devices on Cage Stereotypies and Autoaggression in Captive Cynomolgus Monkeys.’ Journal of medical primatology 17.5 257–269. Print.
Chamove, Arnold S., Geoffrey R. Hosey, and Peter Schaetzel. ‘Visitors Excite Primates in Zoos’. Zoo Biology 7.4 (1988): 359–369. Print.
Cheyne, S. M., C. O. Campbell, and K. L. Payne. ‘Proposed Guidelines for in Situ Gibbon Rescue, Rehabilitation and Reintroduction’. International Zoo Yearbook 46.1 (2012): 265–281. Web. <http://oxfordbrookes.idm.oclc.org/login?url=http://search.ebscohost.com/login.aspx?direct=true&amp;db=a9h&amp;AN=74492926&amp;site=ehost-live>.
Cheyne, S.M. ‘Challenges and Opportunities of Primate Rehabilitation — Gibbons as a Case Study’. Endangered Species Research 9 (2009): 159–165. Web. <http://www.int-res.com/articles/esr2009/9/n009p159.pdf>.
Cheyne, Susan M. ‘Challenges and Opportunities of Primate Rehabilitation—Gibbons as a Case Study’. Endangered Species Research 9 (2009): 159–165. Web. <http://www.int-res.com/abstracts/esr/v9/n2/p159-165/>.
---. ‘Unusual Behaviour of Captive-Raised Gibbons: Implications for Welfare’. Primates 47.4 (2006): 322–326. Web.
---. ‘Unusual Behaviour of Captive-Raised Gibbons: Implications for Welfare’. Primates 47.4 (2006): 322–326. Web.
Cheyne, Susan M., David J. Chivers, and Jito Sugardjito. ‘Biology and Behaviour of Reintroduced Gibbons’. Biodiversity and Conservation 17.7 (2008): 1741–1751. Web.
Cheyne, Susan, and Aurelien MBrule. ‘Adaptation of a Captive-Raised Gibbon to the Wild’. Folia Primatologica 75 (2004): 37–9. Web. <https://search-proquest-com.oxfordbrookes.idm.oclc.org/docview/219369846/6BB4FA7AB96E4599PQ/7?accountid=13041>.
Conde, Dalia A. et al. ‘Data Gaps and Opportunities for Comparative and Conservation Biology’. Proceedings of the National Academy of Sciences 116.19 (2019): 9658–9664. Web.
Cuarón, Alfredo D. ‘Further Role of Zoos in Conservation: Monitoring Wildlife Use and the Dilemma of Receiving Donated and Confiscated Animals’. Zoo Biology 24.2 (2005): 115–124. Web.
Custance, D.M., A. Whiten, and T. Fredman. ‘Social Learning and Primate Reintroduction.’ International Journal of Primatology 23.3 (2002): 479–499. Web. <http://oxfordbrookes.idm.oclc.org/login?url=http://search.ebscohost.com/login.aspx?direct=true&amp;db=a9h&amp;AN=6920553&amp;site=ehost-live>.
Doran, Diane M. et al. ‘Western Lowland Gorilla Diet and Resource Availability: New Evidence, Cross-Site Comparisons, and Reflections on Indirect Sampling Methods’. American Journal of Primatology 58.3 (2002): 91–116. Web.
Edney, Gemma et al. ‘Assessing the Effect of Interpretation Design Traits on Zoo Visitor Engagement’. Zoo Biology (2023): n. pag. Web.
---. ‘Assessing the Effect of Interpretation Design Traits on Zoo Visitor Engagement’. Zoo Biology (2023): n. pag. Web.
Farmer, Kay. Building Sustainable Sanctuaries. Arcus Foundation, 2012. Web. <https://www.arcusfoundation.org/wp-content/uploads/2013/01/Arcus_Building_Sustainable_Sanctuaries.pdf>.
Farmer, Kay H. ‘Pan-African Sanctuary Alliance: Status and Range of Activities for Great Ape Conservation’. American Journal of Primatology 58.3 (2002): 117–132. Web.
Farmer, K.H., H.M. Buchanan-Smith, and A. Jamart. ‘Behavioral Adaptation of Pan Troglodytes Troglodytes.’ International Journal of Primatology 27.3 (2006): 747–765. Web. <http://oxfordbrookes.idm.oclc.org/login?url=http://search.ebscohost.com/login.aspx?direct=true&amp;db=a9h&amp;AN=21857493&amp;site=ehost-live>.
Gilloux, I. ‘An Enrichment Device for Great Apes’. Animal Welfare 1 (1992): 279–289. Web. <http://www.ingentaconnect.com.oxfordbrookes.idm.oclc.org/contentone/ufaw/aw/1992/00000001/00000004/art00006>.
Griffin, A.S., D.T. Blumstein, and C.S. Evans. ‘Review: Training Captive-Bred or Translocated Animals to Avoid Predators’. Conservation Biology 14.5 (2000): 1317–1326. Web. <http://www.jstor.org.oxfordbrookes.idm.oclc.org/stable/2641780>.
Hansen, Malene et al. ‘Conservation of Long-Tailed Macaques: Implications of the Updated IUCN Status and the CoVID-19 Pandemic’. 35 (2021): 207–217. Web. <http://static1.1.sqspcdn.com/static/f/1200343/28485755/1638301171297/PC35_Hansen_et_al_conservation_M_fascicularis.pdf?token=7rF4fW26Q94S2Y1agXPf4Haqc08%3D>.
Hosey, Geoff, Vicky Melfi, and Sheila Pankhurst. ‘Animal Welfare’. Zoo Animals : Behaviour, Management and Welfare. Second. Oxford University Press, 2013. Web. <https://contentstore.cla.co.uk/EReader/Index?guid=eca4f40b-e5b9-ee11-ad36-0050f2f06092&amp;pcid=2728069&amp;t=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiJhOWVjOWE2YS1kNmVlLTRjZjEtOGRmNy04NmNhOTQ2NTYwOWYiLCJuYmYiOjE3MDYwMTA1NTUsImV4cCI6MTcwNjAxMDg1NSwiaWF0IjoxNzA2MDEwNTU1LCJpc3MiOiJEQ1MiLCJhdWQiOiJSZWFkZXIifQ.rV7wYLlOAcv4CI8Z6eP7AaOoUc8-NXMCMz9rz0uZYq4&amp;b=False>.
Hosey, Geoffrey R., Vicky Melfi, and Sheila Pankhurst. Zoo Animals: Behaviour, Management and Welfare. 2nd edition. Oxford: Oxford University Press, 2013. Print.
---. Zoo Animals: Behaviour, Management and Welfare. 2nd edition. Oxford: Oxford University Press, 2013. Print.
---. Zoo Animals: Behaviour, Management and Welfare. 2nd edition. Oxford: Oxford University Press, 2013. Print.
---. Zoo Animals: Behaviour, Management and Welfare. 2nd edition. Oxford: Oxford University Press, 2013. Print.
---. Zoo Animals: Behaviour, Management and Welfare. 2nd edition. Oxford: Oxford University Press, 2013. Print.
---. Zoo Animals: Behaviour, Management and Welfare. 2nd edition. Oxford: Oxford University Press, 2013. Print.
---. Zoo Animals: Behaviour, Management and Welfare. 2nd edition. Oxford: Oxford University Press, 2013. Print.
IUCN. ‘Re-Introduction Specialist Group Guidelines for Non-Human Primate Re-Introductions’. Re-introduction News 21 (2002): 29–52. Web. <http://www.iucnsscrsg.org/STORAGE/RSG%20CD/PDFs/RNews21.pdf#page=29>.
Jeanne Altmann. ‘Observational Study of Behavior: Sampling Methods’. Behaviour 49.3 (1974): 227–267. Web. <http://www.jstor.org.oxfordbrookes.idm.oclc.org/stable/4533591>.
Jensen, Eric A., Andrew Moss, and Markus Gusset. ‘Quantifying Long-Term Impact of Zoo and Aquarium Visits on Biodiversity-Related Learning Outcomes’. Zoo Biology 36.4 (2017): 294–297. Web.
Joanna E. Lambert. ‘Primate Digestion: Interactions among Anatomy, Physiology, and Feeding Ecology’. Evolutionary Anthropology: Issues, News, and Reviews 7.1 (1998): 8–20. Web. <https://onlinelibrary-wiley-com.oxfordbrookes.idm.oclc.org/doi/abs/10.1002/%28SICI%291520-6505%281998%297%3A1%3C8%3A%3AAID-EVAN3%3E3.0.CO%3B2-C>.
Karen Payne. ‘Hepatitis B in Silvery Gibbons (Hylobates Moloch)’. N.p. Web. <https://s3-ap-southeast-1.amazonaws.com/ap-st01.ext.exlibrisgroup.com/61MUN_INST/storage/alma/89/12/D1/5B/33/C0/75/11/AC/B3/0C/3E/43/4C/8E/EB/01Front.pdf?response-content-type=application%2Fpdf&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Date=20240411T090056Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=119&amp;X-Amz-Credential=AKIAJN6NPMNGJALPPWAQ%2F20240411%2Fap-southeast-1%2Fs3%2Faws4_request&amp;X-Amz-Signature=d71ff112600d677480a1bec5dce47e84f6f9f196713be0aed7fe9d8c7c73807d>.
Kavenagh, M, and J.O. Caldecott. ‘Strategic Guidelines for the Translocation of Primates and Other Animals’. Raffles Bulletin of Zoology Supplement No. 29 (2013): 203–209. Web. <https://lkcnhm.nus.edu.sg/app/uploads/2017/06/s29rbz203-209.pdf>.
Kleiman, Devra G. Wild Mammals in Captivity: Principles and Techniques. Chicago: University of Chicago Press, 1996. Print.
---. Wild Mammals in Captivity: Principles and Techniques. Chicago: University of Chicago Press, 1996. Print.
---. Wild Mammals in Captivity: Principles and Techniques. Chicago: University of Chicago Press, 1996. Print.
---. Wild Mammals in Captivity: Principles and Techniques. Chicago: University of Chicago Press, 1996. Print.
---. Wild Mammals in Captivity: Principles and Techniques. Chicago: University of Chicago Press, 1996. Print.
Kleiman, Devra G., Katerina V. Thompson, and Charlotte Kirk Baer, eds. Wild Mammals in Captivity: Principles and Techniques for Zoo Management. Second edition. Chicago: The University of Chicago Press, 2012. Print.
Lehner, Philip N. Handbook of Ethological Methods. 2nd ed. Cambridge: Cambridge University Press, 1996. Print.
Lindburg, Donald G. ‘Are Wildlife Reintroductions Worth the Cost?’ Zoo Biology 11.1 (1992): 1–2. Print.
Lisa M. Rose. ‘Behavioral Sampling in the Field: Continuous Focal versus Focal Interval Sampling’. Behaviour 137.2 (2000): 153–180. Web. <http://www.jstor.org.oxfordbrookes.idm.oclc.org/stable/4535696>.
Lutz, Corrine, Arnold Well, and Melinda Novak. ‘Stereotypic and Self-Injurious Behavior in Rhesus Macaques: A Survey and Retrospective Analysis of Environment and Early Experience’. American Journal of Primatology 60.1 (2003): 1–15. Web.
Mark W. Atkinson. ‘New Perspectives on Wildlife Rehabilitation’. Zoo Biology 16.4 (1998): 355–357. Web. <https://onlinelibrary-wiley-com.oxfordbrookes.idm.oclc.org/doi/abs/10.1002/%28SICI%291098-2361%281997%2916%3A4%3C355%3A%3AAID-ZOO8%3E3.0.CO%3B2-9>.
Martin, Paul R., and P. P. G. Bateson. Measuring Behaviour: An Introductory Guide. Third edition. Cambridge, United Kingdom: Cambridge University Press, 2007. Web. <https://oxfordbrookes.on.worldcat.org/oclc/171567108>.
McGrew, W.C., and E.C. McLuckie. ‘Do Monkey’s Prefer to Give Birth on Weekends?’ Laboratory Primate Newsletter 23 (1984): n. pag. Web. <http://www.brown.edu/Research/Primate/lpn23-4.html#birth>.
Mellen, Jill, and Marty Sevenich MacPhee. ‘Philosophy of Environmental Enrichment: Past, Present, and Future’. Zoo Biology 20.3 (2001): 211–226. Web.
Mellor, David J. et al. ‘The 2020 Five Domains Model: Including Human–Animal Interactions in Assessments of Animal Welfare’. Animals 10.10 (2020): n. pag. Web.
Mooney, Andrew et al. ‘A System Wide Approach to Managing Zoo Collections for Visitor Attendance and in Situ Conservation’. Nature Communications 11.1 (2020): n. pag. Web.
Nash, L.T. et al. ‘Variables Influencing the Origins of Diverse Abnormal Behaviors in a Large Sample of Captive Chimpanzees (Pan Troglodytes)’. American Journal of Primatology 48.1 (1999): 15–29. Web. <http://onlinelibrary.wiley.com.oxfordbrookes.idm.oclc.org/doi/10.1002/(SICI)1098-2345(1999)48:1%3C15::AID-AJP2%3E3.0.CO;2-R/full>.
National Research Council (U.S.). Committee on Animal Nutrition. Nutrient Requirements of Nonhuman Primates. 2nd ed. Washington, D.C.: National Academies Press, 2003. Web. <https://ebookcentral-proquest-com.oxfordbrookes.idm.oclc.org/lib/brookes/detail.action?docID=3375155>.
Nijman, V. ‘In-Situ and Ex-Situ Status of the Javan Gibbon and the Role of Zoos in Conservation of the Species’. Contributions of Zoology 75 (2006): 161–168. Web. <http://www.ctoz.nl/cgi/t/text/text-idx?c=ctz;sid=1bf568490479f67bf13dc888f219213e;view=text;idno=m7503a05;rgn=div1;node=m7503a05:1>.
Nishida, Toshisada et al. ‘Ethogram and Ethnography of Mahale Chimpanzees’. Anthropological Science 107.2 (1999): 141–188. Web. <https://www.jstage.jst.go.jp/article/ase1993/107/2/107_2_141/_article>.
Norton, Bryan G. Ethics on the Ark: Zoos, Animal Welfare, and Wildlife Conservation. Washington: Smithsonian Institution Press, 1995. Print.
---. Ethics on the Ark: Zoos, Animal Welfare, and Wildlife Conservation. Washington: Smithsonian Institution Press, 1995. Print.
---. Ethics on the Ark: Zoos, Animal Welfare, and Wildlife Conservation. Washington: Smithsonian Institution Press, 1995. Print.
Ohlinger, R. et al. ‘King Kong® Rubber Toys: An Effective Enrichment Device for Captive Chimpanzees (Pan Troglodytes)’. N.p., 2000. Web. <https://awionline.org/content/king-kong-rubber-toys-effective-enrichment-device-captive-chimpanzees-pan-troglodytes>.
Pennock, D.S., and W.W. Dimmick. ‘Critique of the Evolutionarily Significant Unit as a Definition for “Distinct Population Segments” Under the U.S. Endangered Species Act’. Conservation Biology 11.3 (1997): 611–619. Web. <http://www.jstor.org.oxfordbrookes.idm.oclc.org/stable/2387421>.
Rabin, L A. ‘Maintaining Behavioural Diversity in Captivity for Conservation: Natural Behaviour Management’. Animal Welfare 12 (2003): 85–94. Web. <http://www.ingentaconnect.com.oxfordbrookes.idm.oclc.org/contentone/ufaw/aw/2003/00000012/00000001/art00006>.
Reinhardt, V. ‘Effective Feeding Enrichment for Non-Human Primates: A Brief Review’. Animal Welfare 6 (1997): 265–272. Web. <http://www.ingentaconnect.com.oxfordbrookes.idm.oclc.org/contentone/ufaw/aw/1997/00000006/00000003/art00007>.
Sainsbury, A.W. ‘The Humane Control of Captive Marmoset and Tamarin Populations’. Animal Welfare 6 (1997): 231–242. Web. <http://www.ingentaconnect.com.oxfordbrookes.idm.oclc.org/contentone/ufaw/aw/1997/00000006/00000003/art00004>.
Sarah‐Jane Vick, James R. Anderson, Robert Young. ‘Maracas for Macaca? Evaluation of Three Potential Enrichment Objects in Two Species of Zoo‐housed Macaques’. Zoo Biology 19.3 (2000): 181–191. Web. <https://onlinelibrary-wiley-com.oxfordbrookes.idm.oclc.org/doi/abs/10.1002/1098-2361%282000%2919%3A3%3C181%3A%3AAID-ZOO2%3E3.0.CO%3B2-W>.
Seelig, D., and A. Truitt. ‘Postresearch Retirement of Monkeys and Other Nonhuman Primates’. Laboratory Primate Newsletter 38.2 (1999): n. pag. Web. <http://www.brown.edu/Research/Primate/lpn38-2.html#april>.
Segal, Evalyn F. Housing, Care and Psychological Well Being of Captive and Laboratory Primates. Park Ridge, N.J.: Noyes Publications, 1989. Print.
---. Housing, Care and Psychological Well Being of Captive and Laboratory Primates. Park Ridge, N.J.: Noyes Publications, 1989. Print.
Soave, O. ‘The Rehabilitation of Chimpanzees and Other Apes’. Laboratory Primate Newsletter 21 (1982): 3–8. Web. <http://www.brown.edu/Research/Primate/LPN21-4.pdf>.
Stevenson, Miranda F., and Trevor B. Poole. ‘An Ethogram of the Common Marmoset (Calithrix Jacchus Jacchus): General Behavioural Repertoire’. Animal behaviour 24.2 (1976): 428–451. Print.
Tarou, Loraine Rybiski, Mollie A. Bloomsmith, and Terry L. Maple. ‘Survey of Stereotypic Behavior in Prosimians’. American Journal of Primatology 65.2 (2005): 181–196. Web.
Tidière, Morgane et al. ‘Survival Improvements of Marine Mammals in Zoological Institutions Mirror Historical Advances in Human Longevity’. Proceedings of the Royal Society B: Biological Sciences 290.2009 (2023): n. pag. Web.
Turvey, Samuel T., Jessica V. Bryant, and Katherine A. McClune. ‘Differential Loss of Components of Traditional Ecological Knowledge Following a Primate Extinction Event’. Royal Society Open Science 5.6 (2018): n. pag. Web.
Tutin, C.E.G. et al. ‘Conservation Biology Framework for the Release of Wild-Born Orphaned Chimpanzees into the Conkouati Reserve, Congo’. Conservation Biology 15.5 (2001): 1247–1257. Web. <http://www.jstor.org.oxfordbrookes.idm.oclc.org/stable/3061479>.
Valverde, Celia R., and Elizabeth Bicknese. ‘Primate Surgery’. Surgery of Exotic Animals. Ed. R. Avery Bennett and Geoffrey W. Pye. First edition. Hoboken, NJ: John Wiley & Sons, Inc, 2022. 383–401. Web. <https://onlinelibrary-wiley-com.oxfordbrookes.idm.oclc.org/doi/epdf/10.1002/9781119139614.ch24>.
Wallace, PY et al. ‘A Review of Population Control Methods in Captive-Housed Primates’. Animal Welfare 25.1 (2016): 7–20. Web.
Wallis, Janette and American Society of Primatologists. Primate Conservation: The Role of Zoological Parks. v. 1. [Chicago, IL]: American Society of Primatologists, 1997. Print.
Watson, LM. ‘Responses of Captive Barbados Green Monkeys (Cercopithecus Aethiops Sabus) to a Variety of Enrichment Devices’. Laboratory Primate Newsletter 36.2 (1997): 3–5. Web. <http://www.brown.edu/Research/Primate/lpn36-2.html#lyna>.
Watson, Stuart K. et al. ‘Vocal Learning in the Functionally Referential Food Grunts of Chimpanzees’. Current Biology 25.4 (2015): 495–499. Web.
---. ‘Vocal Learning in the Functionally Referential Food Grunts of Chimpanzees’. Current Biology 25.4 (2015): 495–499. Web.
Wildt, David E., and C. Wemmer. ‘Sex and Wildlife: The Role of Reproductive Science in Conservation’. Biodiversity and Conservation 8.7 (1999): 965–976. Web.
William B. Karesh. ‘Wildlife Rehabilitation: Additional Considerations for Developing Countries’. Journal of Zoo and Wildlife Medicine 26.1 (1995): 2–9. Web. <http://www.jstor.org.oxfordbrookes.idm.oclc.org/stable/20095430>.
Yeager, Carey P. ‘Orangutan Rehabilitation in Tanjung Puting National Park, Indonesia’. Conservation Biology 11.3 (1997): 802–805. Web. <http://www.jstor.org.oxfordbrookes.idm.oclc.org/stable/2387441>.
Zimmermann, Alexandra. Zoos in the 21st Century: Catalysts for Conservation? Vol. 15. Cambridge: Cambridge University Press, 2007. Print.