研究人员针对树懒作为哺乳动物中消化最缓慢的类群（消化时长是其他草食动物的5-20倍），通过宏基因组学（metagenomics）、代谢条形码（metabarcoding）和纤维素降解实验，首次系统比较了Bradypus variegatus（代谢率更低）与Choloepus hoffmanni的微生物组组成及功能差异。

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 ...

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 ...

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 ...

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 ...

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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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