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
Babirusa Female babirusa cycle lengths are between 28 and 42 days and estrus last 2–3 days. The litter size for a babirusa is usually one or two piglets. In Indonesia, the striking appearance of the babirusa has inspired demonic masks, and the animal itself is sometimes used as a gift to present to visitors. The Balinese Hindu-era Court of Justice pavilion and the "floating pavilion" of Klungkung palace ruins are notable for painted babirusa "raksasa" (grotesques) on the ceilings. Prehistoric paintings of babirusa found in caves on the island of Sulawesi in Indonesia have been dated back at least 35,400 years