A liger, the hybrid offspring of a male lion and a tigress, guards a vegetable field while its owners pick sweet potatoes at Wuqiao Acrobatic World in Cangzhou, North China's Hebei province, Oct 27, 2010. Visitors can often be found picking from the field, which was opened by acrobats and employees of the scenic spot. They keep a four-month-old non-aggressive liger to help keep visitors away. [Photo/CFP]
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