Sexual Shape Variation and Allometric Effects in Guinea Pig (<i>Cavia porcellus</i>) Skulls.

Welch’s t -test indicated a highly significant difference in centroid size between sexes (t = −7.14, df = 27.95, p = 9.1 × 10 −8 ), with the 95% confidence interval for the mean difference (female–male) ranging from −11.03 to −6.11.

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