The task is not an easy one: the monkey must deliver the contents of her nose into her mouth for consumption. You might use your finger for that task. But the capuchin monkey is more clever than you. She uses a stick.
This is an adult female bearded capuchin monkey (Sapajus libidinosus)--an animal clearly ready to challenge humanity for dominance. With their advanced nose picking technology, the capuchins are already the equal of humans, if not our superiors. Science News reports on this startling finding from Brazil:
For about five minutes, an adult female bearded capuchin (Sapajus libidinosus) in northeastern Brazil repeatedly inserted a twig or stem into its nostril, usually inducing a sneeze. The monkey also rubbed sticks back and forth against the base of its teeth, probably to dislodge debris, Haslam and Oxford colleague Tiago Falótico report in the July Primates. After picking its nose or teeth, the monkey often licked the tool tip, perhaps to wipe the stick clean.
-via Dave Barry