The large teeth and massive jaw of Paranthropus boisei ... hard to understand why Paranthropus boisei is often called the Nutcracker Man. The hominid’s massive molars and enormous jaw make ...

Here, the palate and maxillary teeth of Paranthropus boisei. The extinct early human relative dubbed Nutcracker Man, Paranthropus boisei, had much larger teeth (left) than those of modern humans ...

Now scientists investigating carbon isotope ratios in Nutcracker Man's teeth found "it most likely was eating grass, and most definitely was not cracking nuts," Cerling said. [Image of Nutcracker ...