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When it came to dining on Triceratops, the Tyrannosaurus had a problem. That nutrient-rich meat in the Triceratops neck was a Late Cretaceous delicacy, but with that huge bone and keratin frill in the way it was notoriously difficult to get to. Now, paleontologists at the Museum of the Rockies in Bozeman, Mont., have developed a new theory for how the T. Rex devoured the best part of his meal: beheading. According to an analysis of bit marks and scarring on the recovered bones of triceratops, T. Rex devised a method of decapitating its fallen prey to expose that succulent neck meat. The best part of all this, of course, are the sketches outlining exactly how this happened (one of which you can see above). Click through to Nature to see, frame by frame, how pencil-sketch-T-Rex made Triceratops into a meal.

Nature