The bison in Grasslands National Park are in the midst of their peak mating season. A young bull will reach sexual maturity within about six years, a young cow, within two to three years. At one-year-old, a bison calf can weigh as much as 400 lbs.
Cool Fact: In Grasslands National Park, there are over 12,000 ancient teepee rings!
Meet the prairie dogs and bison, and see if you can catch a black-footed ferret or burrowing owl on the Bison Live Cams.
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