Aye-ayes just got weirder with the discovery of a tiny, sixth ‘finger’
An extra digit, a pseudothumb, may help the primates grip objects
![aye-aye](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/10/102119_SB_ayeaye_feat.jpg?fit=1028%2C579&ssl=1)
Aye-ayes’ long, slender fingers are highly specialized for a hunting technique called tap foraging. Now researchers have discovered the primates have a nubby sixth digit, too.
David Haring/Duke Lemur Center