Wild man syndrome experiencing the condition. Some theorists believe that emotions are produced by culture and are not biological. Their emotional diversity across cultures and the way individuals think is based on their social environment and on past and future experience and expectations. Wild Pig syndrome is unusual by Western standards; however, it is common and normal in the Gururumba tribe. This syndrome got its name from the occurrence of domesticated pigs going through a temporary state in which the pig will run wild. With appropriate measures the pig can return to the domesticated pig life among the villagers. This is similar to
Animal Crossing: Wild World to be region-specific in order to make the game easier to localize. Therefore, certain events that were originally observed in "Animal Crossing", such as those based on Halloween, Christmas, and the Japanese Cherry Blossom Festival, are not observed in "Wild World." This rule was also applied to the variety of fish and insects the player is able to collect. On January 26, 2006, a blank letter was sent to a number of players connected to Nintendo Wi-Fi Connection that contained a glitch item called "Red Tulips" that was able to corrupt saved game data. If placed on the floor inside