National Geographic News, Reporting Your World Daily

Thursday, October 28, 2010

Photo: T. Rex, Other Dinosaurs Had Heads Full of Air


Email to a Friend	<< Back to Full Story

Compared with skulls of brainy humans (left), dinosaurs were airheads, a new study says.

Tyrannosaurus rex's skull (top) was filled with empty cavities, while the armored dinosaur Euoplocephalus (right) had a nasal passage that looked like a "crazy straw," experts said in December 2008.

Illustrations courtesy Witmer & Ridgely, Ohio University