How do wildlife know to use animal bridges and crossings

Do animals really use those bridges to cross roads and highways? And how do they work to keep people and wildlife safe?

Liberty Canyon Wildlife Crossing – Santa Monica Mountains Conservancy

Proposed wildlife crossing in Southern Oregon seeks federal funding

Bear hair study in Banff proves animal highway crossings work — High Country News – Know the West

Wildlife crossings are a lifeline for Canada's grizzly bears

The Largest Wildlife Bridge in the U.S. Opens in San Antonio - Route Fifty

Wildlife Crossings - How They Protect Individuals, Species, and Ecosystems

Crossings eyed to reduce the number of collisions involving animals, vehicles - Las Vegas Sun News

Wildlife Crossings Save Lives and Money

Wallis Annenberg Wildlife Crossing – Annenberg Foundation

Researchers discover secret of building a better wildlife overpass

Wildlife Crossings: Animals Survive with Bridges and Tunnels

Wildlife crossing - Wikipedia

25 Animal Bridges That Are Saving Wildlife Across The World

Once controversial highway program is now massive success story - Columbia Insight