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1“...Abstract On May 15, 2008, the United States Fish and Wildlife Service listed the polar bear under...”
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2by Crockford, Susan J“... by the International Union for the Conservation of Nature (IUCN)’s Red List in 2006, and then by the United States Fish...”
Published 2017
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3by Crockford, Susan J“... by the International Union for the Conservation of Nature (IUCN)’s Red List in 2006, and then by the United States Fish...”
Published 2017
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4by Crockford, Susan J“... by the International Union for the Conservation of Nature (IUCN)’s Red List in 2006, and then by the United States Fish...”
Published 2017
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5by Crockford, Susan J“... by the International Union for the Conservation of Nature (IUCN)’s Red List in 2006, and then by the United States Fish...”
Published 2017
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