Mountain goats

Mountain goats like this trio in Canada's Yukon territory are not actually goats – they are part of the antelope family. But these animals have no trouble climbing icy mountain slopes, taking slow steps as their white fur blends in with the snow. They can be found in mountainous areas of western North America – their habitat extends as far south as Colorado, where they are known as Rocky Mountain goats. You can tell a mountain goat's age by checking its horns. As with trees, the horns typically grow a new ring each year, so you can count the rings to learn a goat's age.
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