không thể gọi đây là song thai được vì bản chất đây chỉ được phát triển có một phôi thà nh. đây chi3 là một tình trạng bệnh lý có nguyên nhân từ sự loạn sản protein được gọi là sonic hedgehog homolog (SHH). Diprosopus often occurs in combination with other congenital disorders, particularly anencephaly, neural tube defect and cardiac malformations.When present, the brain may show abnormalities ranging from partial to complete duplication of brain structures, and/or underdevelopment of brain tissues. Few two-faced animals have survived due to associated internal organ abnormalities and brain abnormalities. One of the most famous was Ditto the pig. Ditto was raised to adulthood, but died of pneumonia caused by food inhalation when breathing through one muzzle while eating with the other..
yes diprosopus..@dracomalfoy: i like your dd:/ i think it's refreshing, not like @dofus Kamas comment, it's almost irritating.