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

Table 3 Principal component (PC) axis loadings for dipsadine snakes

Trait	PC1	PC2	PC3	PC4	PC5
Number of maxillary teeth	−0.375	0.226	0.893	0.007	0.101
Length of maxillary bone	−0.999	−0.023	− 0.015	0.002	− 0.001
Position of largest tooth	0.068	−0.179	0.342	−0.673	0.595
Groove width	0.136	0.068	−0.200	0.893	0.371
Fang size	0.118	−0.991	0.055	−0.002	0.020

ISSN: 2730-7182