Native ungulates include the white tailed deer, mule deer, and collared peccary. The collared peccary is also known from Trinidad. A small form of the collared peccary ("Pecari tajacu") is known from Cozumel. Other mammals include the black bear, collared peccary, gray fox and white-nosed coati. Large mammals include the cougar, coyote, mule deer, collared peccary, and river otter. The collared peccary stands around tall at the shoulder and is about long. Other mammals present include two-toed and three-toed sloth, collared peccary, northern tamandua and silky anteater. Collared peccary, cougars and American black bears have also been recorded in the park. The collared peccary is well-adapted to habitat disturbed by humans, merely requiring sufficient cover. They include collared peccary, ground squirrels, mule deer, black-tailed jackrabbit and the desert cottontail. Some other species include the collared peccary ("Tayassu tajacu") and Hoffmann's two-toed sloth ("Choloepus hoffmanni").