The dangers within a zoo vary from the animals being exposed to disease and chemicals to their enclosures 100 times smaller then their home range. Jordi Casamitjana, an Independent Animal Welfare Consultant with particular experience of the captive wildlife industries, compared the average enclosure size of a random sample of fifty mammals in 103 UK zoos (25% of all UK zoos) to the home range of the species in the wi

Many zoos have been closed do to disease, poor reintroduction programs and zero success, and poor transportation and to this day they continue to close. And although zoos also preserve and protect endangered species, the treatment of these animals isn’t the way it should be. It’s not humane in any way and shouldn’t continue.

Zoo animals released into the wild often don’t know how to hunt, and die of starvation once released. Earlier this year, five lynxes were released in the San Juan Mountains of Colorado's high country as part of a $1.4 million program to help revive the species. By the beginning of March, two of the Canadian lynxes were found dead after apparently starving to death. Even though snowshoe hare, the lynx's main prey, are abundant in the area, neither cat was able to kill one. "We know from our survey work last year and from tracks we're seeing in the area that there is an adequate snowshoe hare population," said Colorado Division of Wildlife biologist Gene Byrne. "We also know that there will be mortality, as there is in any reintroduction effort."

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