An inteprepid videographer captured an aye-aye monkey in Madagascar picking its nose, thus making the primate the latest member of a rather exclusive club
https://www.haaretz.com/israel-news/science/2022-10-30/ty-article/what-does-the-aye-aye-do-with-its-grooming-claw-go-on-guess/00000184-2918-dfc8-a1ec-bfd87e650000