Duckbilleddinosaurs, seen in this illustration by University of Toronto released February 2, 2006, dating back about 90 million years, had hugecrestswith complex nasal passages, and used them tohonksexual and social messages, according to a new study in the journal Paleobiology.  (Reuters)

duckbilled: (嘴巴)象鴨的

crest: （雞冠）

honk: emit a honk （發出雁叫聲）