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Also known as sloths

alt=Sloth |thumb|Three-toed sloth crossing a road in Costa Rica Sloths are a Neotropical group of xenarthran mammals constituting the suborder Folivora, including the extant arboreal tree sloths and extinct terrestrial ground sloths. Noted for their slowness of movement, tree sloths spend most of their lives hanging upside down in the trees of the tropical rainforests of South America and Central America. Sloths are considered to be most closely related to anteaters, together making up the xenarthran order Pilosa.

AI overview

Sloths are slow-moving mammals from Central and South America that spend most of their lives hanging upside down in tropical rainforest trees, and they are closely related to anteaters within a larger group of mammals called xenarthrans. They matter as part of the diverse wildlife of tropical ecosystems and represent an interesting example of how animals can evolve specialized behaviors and body structures suited to their environment.

AI-generated from the Wikipedia summary — may contain errors.

Species

樹懶也作树獭,是哺乳綱貧齒總目披毛目下樹懒亞目(学名:Folivora)動物的通稱,包括有樹懒科和二趾樹懒科。其移動的速度非常地慢,只有每分钟4米(0.24km/h)的速度,在地面上是只有每分钟2米(0.12km/h)的速度。如果不慎掉到地面,容易成为其他肉食性动物的猎物,然而牠們具有游泳的能力。共有兩科六種,分布於南美洲及中美洲的熱帶雨林中,雖然外觀上相似,但兩科之間的分別頗大。雖然被稱為二趾與三趾樹懶,但其實所有現存的樹懶均有3根腳趾,主要差異在於,二趾樹懶的前臂上僅有二指。 樹懶的粗毛夾縫中長有與其互利共生的綠藻,提供很好的保護色,而樹懶有時也會取食身上的綠藻作為營養來源。而這些綠藻也是樹懶蛾(英语:sloth moth)的食物來源,有些種類的樹懶蛾甚至只能在樹懶身上發現。 絕種的樹懶包括地懶,其中體型最大的大地懶全長可達6米(20英尺),相當於現今的非洲象。

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