Jul 20, 2018

Megalodon_and_fossil_great_white_shark_teeth

This picture shows a fossilized megalodon shark tooth on the left, and a great white shark tooth on the right. Megalodon sharks are thought to be the largest sharks ever to live. While estimates vary, researchers believe they lived between 70 million and 3 million years ago, before going extinct. Photograph by Brocken Inaglory.