Wild Rockies (2016 - 2016)

Stretching more than 3,000 miles across the U.S.-Canadian border, the Rockies are home to bleak alpine tundra zones. They sit up to 14,000 feet above sea level, with temperatures dropping 3.5 degrees Fahrenheit for every thousand feet of elevation. This means that only the hardiest mountain specialists can cope with its savage conditions, like fur-protected mountain goats and the remarkable hoary marmot.

In the Rockies, the higher you are, the more water you get. Most of it comes from the giant glaciers and awe-inspiring ice fields that rest on the rugged peaks. These glaciers melt in spring, feeding more than 60 major rivers that bring sustenance to the land and the thousands of species that rely on it.

Many prey like bison and elk benefit from social living because larger groups often mean more eyes looking out for danger. So why do some predators also favor this approach? Delve into the dynamics of group living in one of North America's most rugged environments: the Rocky Mountains.