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Bivariate plots of brain–endocast correspondence and distances in Alligator (green) and Gallus (red). (A) Brain and endocranial volume (mm3); (B) brain‐endocast volumetric ratio against logCS of brain; (C) form distance against logCS of brain; (D) Procrustes distance (shape difference) against logCS of brain. Solid lines indicate regression lines, and semi‐transparent bands denote 95% confidence intervals.
