But it’s not a feature that we share with all vertebrates. Humans, other land vertebrates, and jawed fish have synovial joints. The lubricated cavity within these joints makes them more mobile ...

Synovial joints originated millions of years ago in jawed vertebrates, explained Sharma, a researcher at the University of Chicago. In a paper published Tuesday in PLOS Biology, she and her colleagues ...

The efficient architecture of our joints, which allows our skeletons to be flexible and sturdy, originated among our most ancient jawed fish ancestors, according to a new study. The efficient ...