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Rabu, 21 Desember 2011

ngentube.blogspot.com

The black bear population in southern Arizona faces threats from manmade borders, urban sprawl and expanding highway systems, researchers found.

By JACKIE CALMES 22 Dec, 2011


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Source: http://feeds.nytimes.com/click.phdo?i=142faec40c84b8a6897da97d1921d7c5
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