With teeth like that, this pre-dinosaur vegetarian was no push over

15 julio 2015

Head-butting and canine display during male-male combat first appeared some 270 million years ago. This is what researchers found when they conducted an updated in-depth study of the herbivorous mammalian ancestor, Tiarajudens eccentricus, discovered four years ago.img src=»http://feeds.feedburner.com/~r/sciencedaily/~4/GbTi8avoWQg» height=»1″ width=»1″ alt=»»/