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 Defenders International against the use of animals in circuses. ADI, through country-specific investigations, has contributed to the passing of animal rights laws, with Bolivia passing a law to ban both wild and domestic animal acts in all circuses; and similar legislation under consideration in Colombia and Peru. In the UK, ADI is lobbying the Department for the Environment, Food and Rural Affairs to introduce a ban on the use of “certain non-domesticated animals” in traveling circuses in line with DEFRA's 2006 promise to introduce an Act. ADI’s investigation into the use of animals in circuses in the UK and Europe in 1998,