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16 famous animal conservationists

By: Anna Norris on Sept. 9, 2013, 9:30 a.m.
Margaret Murie and her husband Olaus

Photo: Edith English/USFWS

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Margaret Murie

Margaret "Mardy" Murie was deemed the "Grandmother of the Conservation Movement" for her work promoting the 1964 Wilderness Act, which protected 9.1 million acres of federal land, and creating the Arctic National Wildlife Refuge, spanning more than 19 million acres and the largest National Wildlife Refuge in the country. Murie also received the Presidential Medal of Freedom in 1998 for her environmentalism efforts.