... with a forceful bite have more robust jaws that prevent elevated material stress while biting during fights. Lucanidae Finite element analysis Bite force Animal weaponry Mechanical advantage Jaw length Animal weapons often show a high morphological diversity. This is exemplified by the jaws...

...Jana Goyens; Joris Dirckx; Manuel Dierick; Luc Van Hoorebeke; Peter Aerts In the stag beetle family (Lucanidae), males have diverged from females by sexual selection. The males fight each other for mating opportunities with their enlarged mandibles. It is known that owners of larger fighting...