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Theyre falling out of the skies, clogging up rivers and spoiling shorelines around the planet. Why are we seeing mass animal die-offs around the world? Scientists are searching for answers, while also studying why some species are beginning to vanish. In the United States, shrinking populations of bees and bats worry researchers.
First Air Date : Feb 23, 2010
Last Air date : May 03, 2013
Episode : 13 Episode
Season : 2 Season
Runtime: 26:14 minutes
Studio: RMC Découverte, National Geographic
Country: Germany, United States of America
Cast:
