Ancient Panda ‘Thumb’ Matches Modern Version
A bear that roamed what is now China about six million years ago is the oldest bamboo-eating panda ancestor yet found—and it had the same stubby pseudo thumbs that jut from the wrists of today's pandas alongside their five fingers. Fossils of the new species suggest such “thumbs,” which helped the animals grip and strip bamboo, maintained their peculiar shape to facilitate the beast's four-legged locomotion.
The fossils, found in the province of Yunnan and described in Scientific Reports, also push back the date that…