Table 1.

Comparing evolutionary model fits for baculum complexity. AICc, mean Akaike information criterion corrected for small sample size; ΔAICc, the difference between the best model (smallest AICc) and each model; AICcW, Akaike weights, calculated as the relative likelihood of the model divided by sum of likelihoods.

model	AICc	ΔAICc	AICcW
BM	61.8	49.02	0.00
BMS	13.2	0.52	0.44
OU1	37.3	24.67	0.00
OUM	36.2	23.50	0.00
OUMV	12.7	0.00	0.56