LifeOur earliest vertebrate ancestors may have had four eyes Extraordinary fossils of 518-million-year-old jawless fish, among the earliest known vertebrates, appear to show that these animals had two pairs of eyes News
LifeDome-headed dinosaur from Mongolia is the oldest ever found A fossil from about 108 million years ago reveals an early member of the pachycephalosaurs, a group of dinosaurs with bizarre protrusions on their skulls that may have been used in combat News