![Ethan Mollick on Twitter: "It's definitive: sharks are older than the rings of Saturn. This new paper finds that the rings are no older than 400M years. Sharks date back to at Ethan Mollick on Twitter: "It's definitive: sharks are older than the rings of Saturn. This new paper finds that the rings are no older than 400M years. Sharks date back to at](https://pbs.twimg.com/media/FwM3uboWYAAwkBb.jpg)
Ethan Mollick on Twitter: "It's definitive: sharks are older than the rings of Saturn. This new paper finds that the rings are no older than 400M years. Sharks date back to at
![Ethan Mollick on Twitter: "It's definitive: sharks are older than the rings of Saturn. This new paper finds that the rings are no older than 400M years. Sharks date back to at Ethan Mollick on Twitter: "It's definitive: sharks are older than the rings of Saturn. This new paper finds that the rings are no older than 400M years. Sharks date back to at](https://pbs.twimg.com/media/FwN6KRcWcAAyczW.jpg)
Ethan Mollick on Twitter: "It's definitive: sharks are older than the rings of Saturn. This new paper finds that the rings are no older than 400M years. Sharks date back to at
![WEIRD HISTORY Saturn's rings formed approximately 100 million years ago. Sharks have been on Earth around 400 million years. Sharks are older than the rings of Saturn. - iFunny Brazil WEIRD HISTORY Saturn's rings formed approximately 100 million years ago. Sharks have been on Earth around 400 million years. Sharks are older than the rings of Saturn. - iFunny Brazil](https://img.ifunny.co/images/b6ec630376b79e23d5f3ff749c3cfea9294b5294848dac4c3072f689809e92c9_1.jpg)