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Endemic species: Top 9 lonely animals

Jan. 13, 2010, 2:34 p.m.
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Formosan rock macaque

These macaques are a small (2 feet-plus in length) species of monkey endemic to the island of Taiwan. They are listed as a protected species because of over hunting and habitat loss. They are prized for use in medical experiments and have been hunted by locals because the monkeys damage crops. Their numbers fell to an all-time low in the late '80s, but the population has since rebounded thanks to stronger conservation efforts in the last decade.