90.9 WBUR - Boston's NPR news station
map1 home map1

The Arctic Ring of Life

The Detroit Zoo has the world's largest polar bear exhibit, complete with a tundra and  ice pack section, as well as a  70-foot-long Polar Passage, a clear tunnel that winds through an underwater environment. This 12-foot-wide, eight-foot-tall tunnel takes visitors underneath diving and swimming polar bears and seals.