The efficient architecture of our joints, which allows our skeletons to be flexible and ... These joints are present in land vertebrates and bony fish, suggesting this feature had evolved in ...

Ancient fish had synovial joints, challenging the idea that flexible skeletons evolved on land. Fossils and modern fish show similarities.

Synovial joints are a key feature of most vertebrate skeletons, providing more mobility ... These joints are present in land vertebrates and bony fish, suggesting this feature had evolved in ...