Dr. Doug Clark (Ph.D.) has crawled into many polar bear dens as a graduate student and in a former job as a park warden. Dr. Doug Clark (Ph.D.) has crawled into many polar bear dens as a graduate student and in a former job as a park warden. Plants & Animals Ecology Phys.org – latest science and technology news stories
Researchers discover swath of previously undocumented polar bear dens
