Topic: cretaceous

Two pteranodons flying (Getty Images/estt)

Largest flying animal gets a bone scan

Matthew Rozsa
(<a href='http://www.shutterstock.com/gallery-650371p1.html'>Bombaert Patrick</a> via <a href='http://www.shutterstock.com/'>Shutterstock</a>)

Extinction was just bad timing

Joanna Rothkopf