A boy dressed as a zombie take part in "Zombie Walk 2011" in the city of Queretaro, Mexico, July 30, 2011. More than 1,000 people participated in the annual zombie walk, as the tribute to the characters in the film "Zombies or living deads", which have been an important part in literature and movie of the 1950s, according to the organizers. (Photo: Xinhua)