Pronghorn antelope make the second longest migration of any North American land animal. But their ancient migration routes are threatened by livestock fencing.
That's because, for all their speed - they have been clocked at 65 mph - pronghorn won't jump over barbed wire fences, and have difficulty passing under. This episode of Mountain West Voices looks at an innovative solution to the dilemma.
(Broadcast: "Mountain West Voices," 11/2/15, Monday afternoons, 4:53 p.m., or via podcast.)
