The endangered Geoffrey’s spider monkeys that dangle high in the rainforest canopy are elusive and hard for scientists to track. So biologist Jenna Lawson hid 350 audio monitors in trees across Costa ...

Behind the scenes at the Brookfield Zoo, five spider monkeys are preparing to make their public debut this summer. Their journey began more than a year ago when they were confiscated from smugglers at ...

Paul Rosolie is an American conservationist and author. His 2014 memoir, Mother of God, detailed his efforts to protect a tract of forest in Peru through his organization, Junglekeepers. In this ...

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Officers found him stuffed in a suitcase, where he'd been for 18 hours near the Mexican border. Baby black-handed spider monkeys like "J" go for up to $20,000 on the black market. So contraband ...