Researchers have shed light on the activity patterns and behavioral adaptations of two sympatric sloth species, Bradypus variegatus and Choloepus hoffmanni. This groundbreaking study, conducted in the ...

As human population, food consumption, and demand for forest products continue to rise over the next century, the pressures of landuse change on biodiversity are projected to intensify. In tropical ...

Three-toed sloths (Bradypus Variegatus) do everything at glacial speeds–including reproduce. Females give birth once every 15 months and to one baby at a time. Combine that with the fact that sloths ...

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Three-toed sloths (Bradypus variegatus) are the slowest mammals on Earth, according to scientists who have spent 15 years studying these lazy tree-dwellers. When it comes to saving energy, three-toed ...

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Famously sluggish sloths spend most of their lives upside down. But unlike humans, these creatures don't have trouble breathing in that inverted position, because their internal organs are fixed in ...

Life is going to present special challenges to any creature named for a deadly sin. Sloths really deserved better. They could have been called deliberates or contemplatives. How sloths conceive of ...

Wild brown-throated three-toed sloths (Bradypus variegatus; pictured) sleep for a mere nine to ten hours a day, much less than the 16 hours of shut-eye observed in captive sloths. Niels Rattenborg of ...