The heads of two Northeast zoo's explain how they keep their animals safe during extreme weather conditions.
원문출처 : http://edition.cnn.com/video/data/2.0/video/weather/2015/01/27/pkg-how-zoo-animals-survive-a-blizzard.cnn.html?eref=edition
원문출처 : http://edition.cnn.com/video/data/2.0/video/weather/2015/01/27/pkg-how-zoo-animals-survive-a-blizzard.cnn.html?eref=edition