Thrilled at this brief sighting, Joe spent the next three days in South Dakota's Badlands National Park trying for another. 'Sometimes I spent more than six hours searching for it, only to get just a ...

Badlands National Park is a vast wilderness of jagged buttes, spires and pinnacles, mixed-grass prairies, and the world’s richest trove of fossils from the Oligocene epoch, estimated at 23 to 35 ...