Dinosaur Fossil With Fleshy Rooster's Comb Is First of Its Kind

A rare, mummified specimen of the duck-billed dinosaur Edmontosauraus regalis shows for the first time that those dinosaurs' heads were adorned with a fleshy comb, most similar to the roosters' red crest. 

ILLUSTRATION COURTESY PHIL R. BELL, FEDERICO FANTI, PHILIP J. CURRIE, AND VICTORIA M. ARBOUR, CURRENT BIOLOGY