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Tyrannosaurus: make war, not love


Fossils tell us that Tyrannosaurus rex were sometimes violent to each other, biting each other in the faces and jaws hard enough to impale and fracture bone. Some of these wounds occur right at the back and top of the skull. This image portrays the speculation that some of these wounds were made by aggressive head and neck biting during copulation rather than straight fighting. Nuptial biting occurs widely across vertebrates and can cause substantial damage to the head and neck of the female, sometimes even death.