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N659
searching PlanetScale…
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by
N659
4y ago
So far I have read that these are related theories and the "somatic twist" theory is an expansion on the earlier theory of inversion. And there seems to be another related but separate theory called the axial twist theory (explain
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by
N659
4y ago
There's a theory that says an ancestor of all vertebrates just flipped its head around and it stayed that way. (Source: https://arxiv.org/abs/1003.1872 ). Can someone who knows more about animal physiology explain