Dunkleosteus was an apex predator in the oceans of the Devonian period, about 400 million years ago. It could open its mouth in one-fiftieth of a second, creating a vacuum that sucked in its prey. It ate almost everything it encountered, including sharks, other members of its own species, and sea creatures with hard shells, which it regurgitated.
Share the knowledge!
Curiosity StaffMay 13, 2015
Wake up with the smartest email in your inbox.
Our best articles a few times a week.