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?

Animals are Crossing: Who's Helping Wildlife Cross Roadways, and What New Federal Funding Could Mean - Grizzly bear conservation and protection

How wildlife bridges over highways make animals—and people—safer

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

How do wildlife know to use animal bridges and crossings? - Yellowstone to Yukon Conservation Initiative

25 Animal Bridges That Are Saving Wildlife Across The World

How Do Animals Safely Cross a Highway? Take a Look. - The New York Times

It's a long time coming': $6.2 million wildlife bridge over I-90 nears completion

Mountain West States Green-Light Wildlife Crossings

Wildlife Corridors 101: Everything You Need to Know - EcoWatch

Wildlife crossings can save animals. But do they make sense in Indiana?

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

The Pandemic Saved Wildlife. Can Road Crossings? - Bloomberg