Sloths are experts and saving energy and spend most of their lives upside dow.
A sloth at the edge of a forest in the Amazon.
Famously sluggish sloths can take a month to digest a single leaf and can store a third of their bodyweight in urine and feces. Here, two young sloths are shown at the Costa Rica Sloth Sanctuary.
A sloth and its young.
A sloth wears a backpack as part of a tracking project.
Can you tell the sloths from the stuffed animals?
A sloth at the Costa Rica Sloth Sanctuary.
Live Science Staff,
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