The males of this species were also distinguished by their enormous horns

Scientists also believe that they were able to regulate their body temperatures efficiently

serrated teeth designed to tear flesh

it is believed that they could have served to protect it against attacks by large predators or for intraspecific combat during competition for pairs or territories

or "fat-headed lizard

Arctodus simus Mammoth The males of this speciesArctodus simus , commonly known as the short faced bear, was one of the largest terrestrial carnivores of the Pleistocene of North America. This extinct member of the subfamily Tremarctinae inhabited a wide range of ecosystems, from the central plains to the northern forests of the continent, between approximately 800,000 and 11,000 years before present. Its highly specialized morphology has been the subject of intense debate surrounding its trophic