Sloth facts: i) dumb, ii) many insects living in its fur

From I fucking love science

Sloths have a commensal relationship with several insects. Their thick fur readily traps bacteria and algae, which makes a good home for many beetles. The beetles are able to lay their eggs in a place that is rich in nutrients upon hatching, and the sloths don’t care either way. One sloth was reported to have over 900 beetles living in its fur!

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