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. 2016 May 5;7:11484. doi: 10.1038/ncomms11484

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(a) Snakes (n=1,081 species) are distributed non-randomly through the New World, with the centre of diversity in the western Amazon Basin of South America. (b) Spatial distribution of venomous coral snakes (Elapidae; n=78 species). (c) Spatial distribution of harmless mimetic snakes (Colubridae; n=133 species). (d) Residual mimetic species richness after removing the effect of overall species richness shows a strong positive spatial correlation to coral snake richness patterns in b.