A fossil analysis suggests that the yunnanozoan, a wormlike fish that flourished around 520 million years ... a rudimentary brain, and a basketlike skeleton of cartilage supporting its digestive tract ...

While the common ancestor of vertebrates with synovial joints is still a mystery, the oldest specimen with evidence of these ...

Not your typical day at the beach. The post Bizarre half-fish, skeleton-like figure found washed up on beach appeared first ...