Axial Twist Theory: A Novel Explanation for Vertebrate Body Plan

A new scientific theory, the 'axial twist theory,' proposes an explanation for unusual aspects of the vertebrate body plan. It suggests that the rostral part of the head is rotated relative to the rest of the body, encompassing the face and parts of the brain. Studies on zebrafish and chick embryos, along with analyses of developmental malformations, support this theory. While competing with other, more specific theories, the axial twist theory offers a novel perspective on vertebrate anatomy and evolution, though it hasn't yet gained widespread acceptance.