Two Whats?! And A Wow! - The Rest Is Pre-History (5/12/23)
Wow in the World
00:00
The Scientific Wow!
Fossilized shark scales date all the way back to 420 million years ago. This is about 175 million years before the first known dinosaur. There were between 2,000 and 3,000 ancient shark species. Although the dinosaurs are long gone, we still have roughly 500 shark species today.
Transcript
Play full episode
