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Table 1 Strong phylogenetic signal in each trait analyzed supports the notion that dental traits in snakes are controlled, to some extent, by evolutionary history, and provides justification for our use of comparative methods to understand correlations between traits

From: What makes a fang? Phylogenetic and ecological controls on tooth evolution in rear-fanged snakes

Trait λ P-value K P-value
Number of maxillary teeth 0.999 <  0.0001 1.281 0.001
Length of maxillary bone 0.999 <  0.0001 0.948 0.001
Position of largest tooth 0.812 <  0.0001 1.001 0.001
Groove width 0.917 <  0.0001 0.740 0.002
Fang size 0.999 <  0.0001 1.001 0.001
Relative posterior tooth length (colubrid only) 0.890 <  0.0001 0.735 0.002