There are wide variety of deer, some of which have horns year round. Deer are typically medium sized animals and faster than elk. Some varieties, such as impala, live in tropical regions. Mountain deer may have the ability to spring, effectively traversing rocky terrain at three/fourths their normal speed. From mountain deer to mighty northern alpine moose, they are the primary prey of wolves and other predators. Humans typically hunt the smaller deer, while orcs prefer the challenge of an elk or moose.