Dinosaur crests: honk if you like me

 

By Julie Mollins
Fri Feb 3, 2:19 PM ET

TORONTO (Reuters) - Duckbilled dinosaurs of about 90 million years ago had huge crests with complex nasal passages, and used them to honk sexual and social messages, according to a new study in the journal Paleobiology.

 

http://news.yahoo.com/s/nm/20060203/od_nm/dinosaurs_dc;_ylt=A0SOwkD1N.RDDl0Beg_tiBIF;_ylu=X3oDMTBjMHVqMTQ4BHNlYwN5bnN1YmNhdA--