How Dinosaurs Grew the World's Longest Necks

Researchers found that light bones, air and the location of muscles, tendons and ligaments helped maximize length.

February 24, 2013
10:45 AM EST
auropods' necks reached up to 50 feet (15 meters) in length, six times longer than that of the current world-record holder, the giraffe. | Courtesy of PeerJ