Moose are the largest of all the deer species. Males are immediately recognizable by their huge antlers, which can spread 6 feet (1.8 meters) from end to end. Moose have long faces and muzzles that dangle over their chins. A flap of skin known as a bell sways beneath each moose’s throat.
Mountain goats live in alpine and subalpine environments. In the high-altitude environments, sometimes above 13,000 ft, they are the largest mammal. The high elevation protects mountain goats from predators. In the summer, they’ll stay above the tree line and migrate to lower elevations in the winter.
Elk are also called wapiti, a Native American word that means “light-colored deer.” Elk are related to deer but are much larger than most of their relatives. A bull (male) elk’s antlers may reach 4 feet (1.2 meters) above its head, so that the animal towers 9 feet (2.7 meters) tall.
Mountain sheep rely on extremely acute eyesight and can detect slight movements and small objects over a kilometre away. Because an enemy cannot easily approach them unseen on the open mountain expanses, they have little need for highly developed senses of hearing or smell.