Craniopagus twins conjoined twins develop inutero remains unclear. Embryologists have traditionally attributed identical twinning as "splitting or fission" of either the inner cell mass of pleuripotential cells or early embryonic disc at 13–14 days of gestation just before the primitive streak. Some theorists suggested that conjoined twins develop as a result of the failed fusion of a single fertilized ovum. However a new hypothesis suggests that cranial fusion occurs between two separate embryos before the end of the 4th week of gestation. This can happen because the cranial neuropore is still open, which is responsible for the ultimate fusion and formation of
Nazi Pop Twins are also shown trying to distance themselves from the "white pride" movement, expressing doubt that it is what they really believe in. For example, Prussian Blue's non-political songs receive a warm reception at a bar in Fresno, until their background is revealed by their mother. David Lane, an incarcerated white supremacist, is heard speaking by telephone with Prussian Blue and termed them "fantasy sweethearts" in a manner Quinn found disturbing and inappropriate. Nazi Pop Twins Nazi Pop Twins (also known as America's Hate Rock Twins) is a 2007 British documentary wherein filmmaker James Quinn travels to the United States to