Fighting dinosaurs
Here's an interesting question: After the Fall, did carnivory and animal violence originate gradually or suddenly? It seems to me that going from a world with no animal death to one where animals and people died would require a huge change in the entire creation. The old scenario of carnivores getting a taste of meat by nibbling on carcasses really doesn't cut it. Think about it: if you were a happy vegetarian, why would you ever take a bite out of some dead body? Ick. It's far more likely that carnivory originated by an intentional redesign of creation at the Fall. A new paper in PLoS ONE is relevant to this question. In " Evidence of combat in Triceratops ," Farke et al. looked at damage to the skulls of two ceratopsian species: the aforementioned trikes and Centrosaurus . Why two ceratopsians? It's rather clever, actually: Centrosaurus lacks the two large horns present above the eyes of Triceratops . Centrosaurus has much smaller horns above the