Table 5.

Covariance between Kr/Kc and LHT Controlling for Base Composition

Data Set	Control	Body Mass	Longevity	Age at Sexual Maturity
Placentalia (All)	πC and πT	0.33 (>0.99)**	0.46 (>0.99)**	0.53 (>0.99)**
Placentalia (All)	GC bias, AT/GC skew	0.33 (>0.99)**	0.38 (0.98)**	0.54 (>0.99)**
Birds	πC and πT	0.42 (0.99)**	0.29 (0.88)	0.19 (0.76)
Birds	GC bias, AT/GC skew	0.41 (0.99)**	0.27 (0.86)	0.20 (0.77)

Note.—Change in polarity and volume are considered as radical substitutions.

**PP < 0.025 or >0.975.