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Associated Press
Cattle walk in a dusty pasture  in rural Parker County near Springtown, Texas, Wednesday, Aug. 1, 2012.  The animals are part of a herd that cattle rancher Ron Gill has been cross breeding to produce more drought tolerant breeds that can withstand heat and droughts better.  Cattle are being bred with genes from their African cousins who are accustomed to hot weather. New corn varieties are emerging with larger roots for gathering water in a drought. Someday, the plants may even be able to “resurrect” themselves after a long dry spell, recovering quickly when rain returns.  (AP Photo/LM Otero)

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