Sloth

Hoffman's two-toed sloth (Choloepus hoffmanni) feeding in Manuel Antonio National Park in Costa Rica

Three-toed sloth in the Dallas World Aquarium

Sloths (/ˈsloʊθ/ SLOHTH, /ˈslɒθ/ SLOTH) are mammals classified in the families Megalonychidae (two-toed sloths) and Bradypodidae (three-toed sloths), including six extant species. They are named after the capital sin of sloth because they seem slow and lazy at first glance; however, their usual idleness is due to metabolic adaptations for conserving energy. Aside from their surprising speed during emergency flights from predators, other notable traits of sloths include their strong body and their ability to host symbiotic algae on their furs.

单词	Tree sloths
释义	Tree sloths 原声例句跟马修学英语 Living in trees, sloths obviously eat a lot of foliage, but only the three-toed sloths are herbivores. 生活在树上的树懒显然吃很多树叶，但只有三趾树懒是草食动物。英语百科 Sloth Sloths (/ˈsloʊθ/ SLOHTH, /ˈslɒθ/ SLOTH) are mammals classified in the families Megalonychidae (two-toed sloths) and Bradypodidae (three-toed sloths), including six extant species. They are named after the capital sin of sloth because they seem slow and lazy at first glance; however, their usual idleness is due to metabolic adaptations for conserving energy. Aside from their surprising speed during emergency flights from predators, other notable traits of sloths include their strong body and their ability to host symbiotic algae on their furs.
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Tree sloths

Sloth