Sloths are mysterious animals—people usually only see them sleeping or resting on their trees. It is rare for anyone to witness sloths in the act of mating, and thus there is little information about sloth reproduction.

Sloths are naturally solitary animals, but they are not all alone up there in the canopy. In fact, sloths have an entire ecosystem living in their fur made up of different species of algae, fungi, moths, and insects. That’s millions of organisms for company!