8+ hour, 57+ min ago   (648+ words) Feb 10 (Reuters) " Scientists have unearthed in Canada's province of Nova Scotia the skull of a creature dating to about 307 million years ago that is one of the oldest-known plant-eating land vertebrates, representing a pivotal juncture in animal evolution. The creature,…...

5+ day, 7+ hour ago   (566+ words) WASHINGTON, Feb 6 (Reuters) " Footprints are among the most common kind of dinosaur fossils. Sometimes scientists find a single, lonely footprint. Sometimes they come across a chaotic jumble of tracks resembling a dance floor, sort of a dinosaur discotheque. But identifying…...