Friday, February 03, 2006

Duckbills were Vocal

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.

"The crest likely evolved to play a role in behavior of both vocal and visual display -- to call to attract a mate or warn of predators or something like that," said David Evans, a researcher at the University of Toronto.

Read the rest here.

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