Season 43 Episode 11 | 53m 22s
Four-lane highways may be a necessity to our modern society, but they can be a death traps for millions of animals that try to cross them. Around the world, wildlife need to roam for breeding, foraging, and to carry out their traditional migrations–but they are often blocked by ranches, farms, roads, and other human-made obstacles.
Expires: 04/17/19Video has closed captioning.
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