Perhaps the most obvious mainstay of dinosaurs in art and culture is the stand-off between the giant, fanged Tyrannosaurs and the horned and frilled Triceratops. It’s pretty much a cliché for dinosaurs that these two will fight each other when together and that the predator is always after his well-defended prey.
Obviously, I generally don’t think that tyrannosaurs (or most theropods for that matter) tackled healthy adult prey when there was a great selection of tasty, small, largely defenseless and naïve juveniles around. Now that makes sense at the best of times (and is borne out by what modern predators do, not to mention the inferences about dinosaurs) but a photo like this really makes you wonder.
OK, rexy is lying down (and it’s not the biggest specimen), but the difference in size is quite obvious. Triceratops is really, really big. Even in comparison to the ‘king’ it’s a huge animal with a massive skull, long horns, and a big body and a lot of weight behind it. There’s reason lions don’t generally tackle adult buffalo and won’t go near rhinos and that’s because they are too likely to get stompted, gored, or generally injured. This is a big and intimidating animal, and while eyeballing skeletons is not the best way of assessing complex behaviours, I do find it hard to believe that this was a normal prey choice for a tyrannosaur.