Culverts are designed to funnel stormwater under roadways, but these structures are carrying more than just water. A study from the University of Maryland’s Center for Environmental Science uncovered the diversity of species that use culverts to travel beneath highways. They found that close to 60 species use the culverts, from grizzly bears and moose in Canada to panthers and alligators in Florida. The study also looked at the type of culverts animals prefer. With 6.2 million km of paved roads in the United States, animal habitat is fragmented. However, culverts could be used to improve road safety for animals and humans.