Table 2.

Null/full model comparison and summary of the model for cranial volume. Domestic cats are included in the intercept. Residual standard error: 3.032 on 92 degrees of freedom. Multiple R-squared: 0.796, adjusted R-squared: 0.7871 F-statistic: 89.74 on 4 and 92 d.f., p-value: <2.2 × 10⁻¹⁶

cranial volume
	Pr(>Chi)
full/null comparison	<2.2 × 10−16

	estimate	s.e.	t value	Pr(>|t|)
intercepta	0.30317	3.28866	0.092	0.9268
basal skull length	0.3464	0.04445	7.792	9.71 × 10−12
F. catus × F. silvestris hybrid	5.6224	0.86044	6.534	3.49 × 10−9
F. lybica	2.50871	0.9981	2.513	0.0137
F. silvestris	12.00224	1.02669	11.69	<2 × 10−16

^aIntercept includes domestic cats.