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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: J Exp Zool B Mol Dev Evol. 2020 Feb 6;334(7-8):450–462. doi: 10.1002/jez.b.22932

Figure 7. Three populations of cavefish exhibit a dorso-cranial bend.

Figure 7.

The angle between the supraoccipital bone (midline) and the right and left maxillary bones were measured and an asymmetry index was calculated by subtracting the right-side angle from the left. Surface fish demonstrate dorso-cranial symmetry (A), while Chica (B), Tinaja (C), and Pachón (D) cavefish exhibit a dorso-cranial bend. Positive asymmetry index scores indicate a bend to the left, a score of zero indicates perfect symmetry, and negative scores depict a bend to the right.