|or no fingers?|
The crests, like other hadrosaurs, were almost certainly used for vocalization. This vocalization could of course be warnings, greeting, threats, and perhaps even casual conversation (I tend to hold a "fantastical" idealism for the idea that animals converse the same ways you and I do just in their own form of language). Another important aspect of life that this vocalization more than likely held was that of identification purposes. Beyond vocalizing the crests themselves in coloration and size were probably good indicators of individuality as well as the likelihood that the ones with the healthiest and prettiest looking crests were ready and willing as well as strong mates.
|One healthy and eligible bachelor, coming up.|