At night it opens to a complete circle to allow for better vision to maximize dim-light vision. The lower incisors and canines are arranged to make a tooth-comb. The tooth-comb is used to scoop out the tree gum. During grooming the tooth comb is used to get debris from and to detangle the hair. The tongue has a flushy comb on its underside that has hardened points used to clean between the teeth of the tooth comb.
Populations are stable, and all four species are currently secure.
There is no threat to their survival as long as habitat remains stable. Websites Bush babies are arborial and have been known to jump 20 feet from branch to branch. Typical of arboreal leapers, the bushy tail acts as a stabilizer as the bush baby sails through the air. Some African tribes catch bush babies for pets by leaving out saucers of palm wine for them to drink. Bush babies fertilize flowers by transferring pollen as they feed.