Mammals are furry, warm blooded creatures that nurse their young, have well developed sensory systems and produce a limited number of offspring at a time to ensure their survival. They are naturally exciting and receptive, and most can climb, walk, glide, and swim which helps them thrive in multiple niches of the ecosystem. Mammals also have special teeth that help them eat and find different types of food and they can easily adapt to almost every type of environment without any major issues.

Mammals are the most commonly found creatures in the park – more than 60 species of mammals are found within the mighty Teton Mountain range and inhabit the four main communities of the park i.e. the forest, the wetlands, the alpine and the sagebrush flats.

Most wildlife watchers come to the Grand Teton in search of these engaging, inquisitive and elusive creatures. Large mammals such as Elk, Bison, Moose and Mule Deer are easily found lurking near vantage points while Red Squirrels, Ground Squirrels and Least Chipmunks are common on the valley floor. The area is also home to large predators like Black Bears, Mountain Lions, Wolves and Grizzly Bears but they are usually more difficult to find. Badgers, Long Tailed Wolverines and Long Tailed Squirrels are also equally elusive. Hiking along the more rocky regions, visitors can view glorious Golden Mantled Ground Squirrels or else find a Beaver or River Otter swimming along the watery havens of the park.