Editor's note: From sea turtles—a crucial link in marine ecosystems—to beloved characters like Franklin the Turtle, these slow-moving cuties have been capturing hearts for over 200 million years. They remind us of fundamental concepts like “slow and steady wins the race,” and that sometimes you just need to retreat into your shell for a few hours to regroup. We’ve put together a gorgeous retrospective of a fascinating animal, so check it out and get a cool Turtle wallpaper today!