In this photo taken Aug. 1, 2011, an Angus/Brahman crossed cow eats mesquite tree beans on Pete Bonds' ranch in Saginaw, Texas. Due to drought the grass has fewer nutrients. The beans are high in ... more 
In this photo taken Aug. 1, 2011, an Angus/Brahman crossed cow eats mesquite tree beans on Pete Bonds' ranch in Saginaw, Texas. Due to drought the grass has fewer nutrients. The beans are high in protein but can be toxic in large amounts. (AP Photo/Rex C. Curry) less 
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Associated Press | Photo By Rex C. Curry
Sun, Aug 14, 2011 3:57 PM EDT