Fig. 5. (A) Mean (± s.d.) maximum angular acceleration () by species, in radians s^–2. Species arranged from lowest mean mass to largest, left to right. Secondary error bars (dotted lines) represent digitization error for groups in which this was estimated. (B) Scatterplot and regression of independent contrast (IC) values for log₁₀-transformed jaw accelerations vs log₁₀ head width (P=0.04, slope=–1.54, 95% CI=–2.72 to –0.354, r²=0.52).