Turtles were at the center of a hundred-year evolutionary controversy since the 1887 discovery of a Proganochelys fossil in Germany. AS PBS Eons explains, the question of how turtles got their shells led scientists “to rethink the entire history of reptile evolution.”
Bonus video: sea turtles eat jellyfish like spaghetti:
• How the Turtle Got Its Shell (YouTube / PBS Eons)
Image: Pexels