Sixth Finger Discovered on Hand of Bizarre Aye-Aye

It's the only known primate to have a sixth digit. Madagascar's rare lemurs have tiny 'pseudothumbs' that move like human thumbs. The aye-aye's hands are so odd that researchers say it looks like they're 'walking on spiders.'
Published: 9:08 AM PDT October 21, 2019
Updated: 8:18 AM PDT October 21, 2019