Smithsonian Magazine on MSN

Sharklike Fish With Weird, Buzz-Saw Jaws Sliced Through the Seas, Then Vanished. Now, Paleontologists Are Unraveling Their Secrets

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...
Discover Wildlife

Its twisted jaws and one-sided teeth make it able to saw animals in half

This lopsided dentition, combined with the unusual ability to move the sides of their jaws independently, enables them to ...