Madagascar’s Ring-Tailed Lemurs Regularly Sleep in Caves, Biologists Say

A new study published in the journal Madagascar Conservation and Development has shown the ring-tailed lemurs (Lemur catta) are the world’s only primates that sleep in the same caves on a nightly basis.

Ring-tailed lemurs are found only in Madagascar. They are easily identified by their characteristic, black and white ringed tails, which can be twice as long as their bodies.

Source: Here