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Good night, Sloth

Lab tests of animal sleep may have been too cushy or boring

5:46pm, May 13, 2008

Sloths aren’t as slothful when tested for sleep in their rainforest trees instead of in the lab.

Brown-throated three-toed sloths living in rainforest trees slept at least six hours less than the 16 hours a day previously recorded for sloths in a lab, says Niels Rattenborg of the Max Planck Institute for Ornithology in Seewiesen, Germany.

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