Tracking wild horses at Assateague Island National Seashore

A wild horse at Assateague Island National Seashore in Maryland. (Jeff Jones | Brains On)

A wild horse at Assateague Island National Seashore in Maryland. (Jeff Jones | Brains On)

The wild horses at Assateague Island National Seashore in Maryland are very popular, but they’re also an invasive species. We find out how park rangers are giving people a chance to see the horses while also protecting the native plants and animals FROM the horses.