Tiny knee bone three times more prevalent than 100 years ago: study
https://healthell.blogspot.com/2019/04/tiny-knee-bone-three-times-more.html
Tiny knee bone three times more prevalent than 100 years ago: study
A small bone behind the knee that scientists previously thought had been selected out by evolution a century ago is now three times more prevalent - and possibly linked to arthritis, according to a new study.