Fig. 1.

Mean temperature coefficients (Q₁₀) with SE bars for tongue projection (green) and retraction (gold), indicating the factor by which each performance parameter changes over 10 °C. Note the consistently lower values for projection versus retraction. Q₁₀ was calculated as the average of each individual's Q₁₀ value for that parameter; individual Q₁₀ values were calculated from interpolated performance values at an average projection distance of 12.5 cm (from performance values regressed against projection distance).