Re: Pachycephalosaurs could really knock heads...

["Richard W. Travsky" <rtravsky@uwyo.edu>]

On Tue, 1 Apr 2008, Jamie Stearns wrote:
> If head-butting was used to fight over mates (yes, big "if" but this is one 
> of the primary functions of intraspecific combat in modern animals) perhaps 
> pachycephalosaurs mated for life? That would explain why older adults

Or harems.

> wouldn't need to fight over a mate while younger ones would.

Older ones would presumably be bigger than the younger ones and thus be 
able keep it at the implied threat stage.