Nose picking lemur ‘could shed light on behaviour deemed improper in humans’

Researchers have recorded the aye-aye picking its nose and licking the finger clean (Anne-Claire Fabre)

Nose picking and snot eating may be frowned on among humans but one particular type of primate species has specialised fingers for doing just that, scientists have found.

Researchers have, for the first time, recorded the aye-aye – a long-fingered lemur – inserting its extremely long digit up its nostrils and then licking its finger clean.