A 260 million-year-old fossil has been determined to be the oldest ancestor of turtles found to date, revealing something about the reptile's mysterious past. Back in the olden days, or rather 260 ...

For decades, turtles have stumped scientists trying to place the shelled reptiles on the evolutionary tree. Now, a new study published in Current Biology argues the mystery is finally closer to being ...

The origin of turtles has puzzled scientists. A new study provides more evidence that these shelled reptiles share a common ancestor with crocodiles and birds. By Sara Novak Turtles are weird. They ...

Add Yahoo as a preferred source to see more of our stories on Google. It's a long-held idea that turtles can tuck their heads into their shells when threatened. But is it true? And is this protective ...