It's a classic chicken-and-egg conundrum: Did the distant ancestors of land animals come ashore and then evolve legs, or did they evolve legs and then come ashore? This is a daunting question ...

As a child, Louise Locker found magic in the flight of birds, the picking of four-leaf clovers, the smell of freshly mowed grass and the twinkling of stars as her mother told stories about the ...

Jennifer A. Clack made groundbreaking fossil discoveries of the emergence of animals with backbones out of the water onto the land. Her work lifted the study of the transition from fishes to tetrapods ...

On an expedition to Greenland in 1987, this University of Cambridge paleontologist unearthed remains of a creature from the Devonian Period (408-360 million years ago) that skulked around swamps on ...