The Megalodon Shark and Helicoprion: two mysterious, extinct sharks that have left fossilized clues of their existence in the form of their teeth (and some vertebrae). Get a close look at the largest shark tooth and a very unusual tooth whorl with Emily Graslie of The Brain Scoop.
In the archives: more Brain Scoop, more fossils, and all kinds of sharks.Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.