300 million-year-old giant shark swam the Texas seas
Fossil find shows oldest known ‘supershark’ was bigger than today’s great whites
![great white shark](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/10/102015_supershark_feat_free.jpg?fit=860%2C460&ssl=1)
SUPERSHARK Today’s big predatory sharks, like this great white, top out at around 6 or 7 meters long. But 300 million years ago, an ancient shark found in Texas may have reached 8.5 meters in length.
Brook Ward/Flickr (CC BY-NC 2.0)