Aye-Ayes Have Been Hiding a Secret Sixth Finger This Whole Time
Aye-ayes are among the strangest primates on Earth, with their oversized ears, spider-like hands, and—as new research shows—a previously undetected sixth finger. Five fingers per hand tends to be the norm in the animal kingdom, but scientists have documented several cases in which organisms feature a sixth finger, an anatomical quirk known as an “accessory…
