Fossils Of Ancient Shark Jaws Tell Scientists A New Evolutionary Tale

By Samantha Olson

Scientists at the American Modern Museum of Natural History have discovered the modern-day shark jaws are structurally different than their less complex ancestors.

Recipient's E-mail

(Separate multiple e-mail addresses with commas. Limited to 20 addresses. Your recipients' e-mail addresses will be saved for your convenience. The e-mail addresses that you supply to use this service will not be shared with any third parties.)

Your E-mail