A Deer Migration You Have to See to Believe

April 22, 2014---Researchers have only recently found the longest large mammal migration in the continental United States: Mule deer migrate 150 miles (241 kilometers) in western Wyoming each year. And it's no easy task for them--barriers include highways, fences, tough terrain, and bodies of water. In this video by Joe Riis, a National Geographic grantee and regular contributor, see the modern-day obstacles mule deer overcome to make the migratory trek that they likely have been making for generations. 

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Click Here for More Information on the Wyoming Migration Initiative

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