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Captive animal deaths by year: Difference between revisions
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[[File:Portrait of a Captive Animal (41773534235).jpg|alt=An elephant in captivity|thumb|An elephant in captivity]] | |||
There are several reasons for captive animal deaths. Zoo animals are typically killed for two reasons: to control the population and manage “surplus animals,” or to maintain genetic strength and diversity within a captive breeding program.<ref>[https://www.earthisland.org/journal/index.php/articles/entry/death_at_a_zoo/ Death at a Zoo] Earth Island Journal</ref> Chronic stress can also arise as a result of restricted movement, contact with humans and many other factors. This condition reveals itself through high concentrations of stress hormones in an animal's blood.<ref name=":0">[https://www.discovermagazine.com/planet-earth/how-does-captivity-affect-wild-animals How Does Captivity Affect Wild Animals?] Discover Magazine</ref> Chronic stress weakens the immune system, leading to higher disease rates in many animals.<ref name=":0" /> Another sign of stress is decline in reproduction, which explains why it’s often difficult to get animals to breed in captivity.<ref name=":0" /> | There are several reasons for captive animal deaths. Zoo animals are typically killed for two reasons: to control the population and manage “surplus animals,” or to maintain genetic strength and diversity within a captive breeding program.<ref>[https://www.earthisland.org/journal/index.php/articles/entry/death_at_a_zoo/ Death at a Zoo] Earth Island Journal</ref> Chronic stress can also arise as a result of restricted movement, contact with humans and many other factors. This condition reveals itself through high concentrations of stress hormones in an animal's blood.<ref name=":0">[https://www.discovermagazine.com/planet-earth/how-does-captivity-affect-wild-animals How Does Captivity Affect Wild Animals?] Discover Magazine</ref> Chronic stress weakens the immune system, leading to higher disease rates in many animals.<ref name=":0" /> Another sign of stress is decline in reproduction, which explains why it’s often difficult to get animals to breed in captivity.<ref name=":0" /> | ||