Improving Roads for Wildlife and People

Visit our keyboard shortcuts docs for details
1 hour, 8 minutes, 22 seconds

Roads constitute the largest human artifact on Earth, altering ecological flows and creating a persistent barrier to terrestrial and aquatic passage. In addition to acting as barriers to wildlife movement and migration, motorists in the U.S. annually kill an estimated 1-2 million large mammals and inestimable small animals, at a cost to Americans of more than $8 billion. Learn about creative solutions to save wildlife. (June 2021)

Last updated: June 23, 2021