Footnotes: - National Geographic, “Zoo,” nationalgeographic.org (accessed May 8, 2019)
- Schönbrunn Palace, “Zoo,” schoenbrunn.at (accessed Apr. 23, 2019)
- CBC, “Trapped in a Human Zoo,” cbc.ca, (accessed Apr. 23, 2019)
- Krista Langlois, “Something Mysterious Is Killing Captive Gorillas,” theatlantic.com, Mar. 5, 2018
- Association of Zoos & Aquariums, “Currently Accredited Zoos and Aquariums,” aza.org, Apr. 2019
- Association of Zoos & Aquariums, “Visitor Demographics,” aza.org (accessed May 7, 2019)
- Maury Brown, “Why MLB Attendance Dropped below 70 Million for the First Time in 15 Years,” forbes.com, Oct. 3, 2018
- NHL, “NHL Attendance (1975-76 through 2018-2019),” records.nhl.com (accessed May. 7, 2019)
- NBA, “NBA Breaks All-Time Attendance Record for Fourth Straight Year,” nba.com, Apr. 12, 2018
- Brandon McClung, “NFL Attendance Lowest since ’10 Despite Chargers Rebound,” sportsbusinessdaily.com, Jan. 2, 2019
- Andrew Moss, Eric Jensen, and Markus Gusset, “Evaluating the Contribution of Zoos and Aquariums to Aichi Biodiversity Target 1,” Conservation Biology, Aug. 22, 2014
- Robin Ganzert, “Zoos Save Species — Visit One This World Wildlife Day,” thehill.com, Mar. 3, 2018
- Tse-Lynn Loh, et al., “Quantifying the Contribution of Zoos and Aquariums to Peer-Reviewed Scientific Research,” facetsjournal.com, Mar. 15, 2018
- Association of Zoos & Aquariums, “Research and Science,” aza.org (accessed May 7, 2019)
- C. Robinette, L. Saffran, A. Ruple, and S.L. Deem, “Zoos and Public Health: A Partnership on the One Health Frontier,” One Health, Nov. 23, 2016
- Taronga Conservation Society Australia, “10 Endangered Species Saved from Extinction by Zoos,” medium.com, May 18, 2017
- Association of Zoos & Aquariums, “AZA and Animal Program Conservation Initiatives,” aza.org (accessed Apr. 17, 2019)
- Association of Zoos & Aquariums, “Pollinator Conservation,” aza.org (accessed Apr. 17, 2019)
- Association of Zoos & Aquariums, “Climate Change and Wildlife,” aza.org (accessed Apr. 17, 2019)
- Association of Zoos & Aquariums, “Marine Mammal Conservation,” aza.org (accessed Apr. 17, 2019)
- Michela Pacifici, et al., “Species Traits Influenced Their Response to Recent Climate Change,” nature.com, 2017
- Association of Zoos & Aquariums, “Conservation Success Stories in AZA-Accredited Zoos and Aquariums,” aza.org, Apr. 20, 2017
- US Fish & Wildlife Service, “California Condor Population Information,” fws.gov, May 7, 2018
- Jan Flemr, “Long Way Home as Przewalski’s Horses Fly to Mongolia,” phys.org, July 19, 2018
- Jane Palmer, “The World’s Last Truly Wild Horse,” bbc.com, Nov. 11, 2015
- Lori Marino, et al., “Do Zoos and Aquariums Promote Attitude Change in Visitors? A Critical Evaluation of the American Zoo and Aquarium Study,” animalstudiesrepoistory.org, 2010
- John H. Falk, et al., “Why Zoos and Aquariums Matter: Assessing the Impact of a Visit to a Zoo or Aquarium,” docplayer.net, 2007
- Romesh Ranganathan, “Zoos Are Prisons for Animals — No One Needs to See a Depressed Penguin in the Flesh,” theguardian.com, Mar. 13, 2017
- Edna Francisco, “Zoo Carnivores Need More Space,” sciencemag.org, Oct. 1, 2003
- Ian Sample, “Stress and Lack of Exercise Are Killing Elephants Zoos Warned,” theguardian.com, Dec. 11, 2008
- Alex Halberstadt, “Zoo Animals and Their Discontents,” nytimes.com, July 3, 2014
- Daniel Engber, “The Tears of a Panda,” slate.com, Sep. 14, 2006
- Jenni Laidman, “Zoos Using Drugs to Help Manage Anxious Animals,” toledoblade.com, Sep. 12, 2005
- Lucy Birkett and Nicholas E. Newton-Fisher, “How Abnormal Is the Behavior of Captive, Zoo-Living Chimpanzees?,” journals.plos.org, June 16, 2011
- John Jett, et al., “Tooth Damage in Captive Orcas,” sciencedirect.com, May 2018
- Natasha Daly, “Orcas Don’t Do Well in Captivity. Here’s Why,” nationalgeographic.com, Mar. 25, 2019
- Shelby Isaacson, “Mote Ranked No. 1 Nonprofit in Published Research by Top Zoos and Aquariums,” mote.org, Apr. 4, 2018
- Zoo Atlanta, “Representative Research,” zooatlanta.org (accessed May 8, 2019)
- Bronx Zoo, “Bridging the Gap,” bronxzoo.com (accessed May 8, 2019)
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