Wildlife Underpasses and Overpasses do in fact facilitate the "spreading of genes" and safe passage across our nations highways for creatures large and small........."Cool photos below of both carnivores and herbivores using the Montana Highway 200 underpass east of Lincoln, cutting though the Helena-Lewis & Clark National Forest"..........."The underpass was installed a few years ago to help keep both wildlife and drivers safe and help prevent wildlife-vehicle conflicts"............"All Photos: Courtesy of Montana Dept. of Transportation (via wildlife cameras set-up to monitor usage of the underpass)"

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Bears, moose, wolves elk and mountain lions: Animals use the Highway 200 underpass east of Lincoln, Montana(Helena Lewis & Clark National Forest)

Helena-Lewis & Clark National Forest

Black Bear

Puma(Mountain Lion)

Moose

Gray Wolf

Grizzly Bear

Gray Wolf

Elk