How does an endangered animal—say a wolf or a bear—cross a four-lane highway, with cars, SUVs, delivery trucks, motorcycles, and two-ton tractor trailers whipping by in both directions at 70 miles per hour?
They don't—or they can't safely.
That's why some countries have installed ecoducts, animal-only bridges.
Built by bipeds for our four-legged furry friends, these wildlife crossings are at once stunning and life-saving.
Should states and federal governments spend taxpayer dollars building ecoduct bridges for animals? Tell us in the comments.