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Jaw adductor muscle mass (g) over ontogeny in Rhinoptera bonasus. Solid lines, RMA regressions for the data; dashed lines, scaling predictions based on isometric growth set to cross data lines at the mean values of each independent variable. (a) SB muscle masses, (b) AMD muscle masses, (c) AMMa muscle masses, (d) AMMe muscle masses, (e) AMLi muscle masses, (f) AMLa muscle masses. ‘I’ denotes isometry, ‘P’ denotes positive allometry.
