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
Tame animal humans, but domestication is the permanent genetic modification of a bred lineage that leads to an inherited predisposition toward humans. Human selection included tameness, but domestication is not achieved without a suitable evolutionary response. Domestic animals need not be tame in the behavioral sense, such as the Spanish fighting bull. Wild animals can be tame, such as a hand-raised cheetah. A domestic animal's breeding is controlled by humans and its tameness and tolerance of humans is genetically determined. Thus, an animal bred in captivity is not necessarily domesticated; tigers, gorillas, and polar bears breed readily in captivity but are not