Table 1.

Correlation of variable residuals with encephalization residuals. (Log L values less than −2 indicate that the observed value of r is significantly different from zero: none of the observed correlations is significant.)

variable	r	log L
gestation time	0.089	−0.509
newborn mass	0.194	−1.880
weaning time	−0.078	−0.331
weaning mass	0.202	−1.085
litter size	−0.075	−0.410
litters per year	−0.102	−0.452
BMR	0.136	−0.514