Decadancin Moderatoris Americanus Staff member Dec 14, 2015 #3 Could be other factors here that are not considered, but still an interesting idea . Larger head with larger muscle mass would be kinda obvious, but I'm more interested in what makes the two groups so different. Oh, that Darwin .
Could be other factors here that are not considered, but still an interesting idea . Larger head with larger muscle mass would be kinda obvious, but I'm more interested in what makes the two groups so different. Oh, that Darwin .