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Fig. 4 | BMC Evolutionary Biology

Fig. 4

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

Fig. 4

Boxplots showing dental traits that differ significantly when grouped by prey subjugation mode for all snakes (a-c) and colubrids (d). Each ANOVA revealed significant results (p < 0.05), and horizontal lines indicate significant differences between pairs of groups in post-hoc tests. “Both” = both venom & constriction, “constrict.” = constriction only, “neither” = neither venom nor constriction, “V-MS” = medically-significant venom, and “V-NMS” = non-medically significant venom. a Medically-significant venom users have fewer maxillary teeth than all other groups. b Medically-significant venom users have shorter maxillary bones than all other groups. c Medically-significant venom users have larger fangs than all other groups except non-medically-significant venom users. d In colubrids only, fang size (relative posterior tooth length) differs between medically-significant venom users and all other groups

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