The Washington Post reports on a $312,000 Maryland study on the use of road culvert by wildlife -- one way to reduce unnecesary (and expensive) vehicle impacts:
A wide variety of wild animals use drainage culverts to cross beneath roads but some species are choosy about tunnel types, a University of Maryland study has found.
Researchers documented 57 species using the conduits, including nesting barn swallows, feral cats and white-tailed deer — a species of particular concern because they cause dozens of deaths in collisions each year around the country.
Want to know more about wildlife and roads? There's a whole web site devoted to it -- check it out!