From the Editor's Desk

Paleontologists Unravel Secrets of 'Enigmatic' 33-Foot Prehistoric Shark After Fossil Discovery

Scientists didn’t know much about Ptychodus, an ancient shark genus, because its remains were usually just fragments. Now, complete fossils reveal its body shape and hunting habits

After years of uncertainty, a prehistoric shark mystery has at last been solved—thanks to the recent discovery of remarkably complete fossil skeletons in northeastern Mexico.

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