Turtles Island-Hopped Their Way Across a Warm Arctic
Enlarge ImageFrigid find. The location (red star) of the ancient turtle fossil (inset) is seen on a map centered on the North Pole. Researchers speculate that Asian turtles (red diamonds) migrated to North America (green squares) across an archipelago created by the Alpha Ridge. Credit: Tom Whitley Sometime about 90…
