Monkeys escape after truck overturns on Mississippi highway, 3 still missing

Monkeys being transported on a Mississippi highway escaped Tuesday after the truck carrying them overturned, authorities said ...
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3 monkeys still on the loose after truck overturns on Mississippi highway

People searched the side of a Mississippi highway Wednesday afternoon after a truck carrying 21 research monkeys overturned there a day before and several monkeys escaped. (AP Video / Sophie Bates) ...