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According to a new study in the Proceedings of the National Academy of Sciences (PNAS), the genetic building blocks behind the production of oral venom in snakes are shared by mammals and reptiles. Therefore, while we may not currently possess a death-inducing bite, the prospect of one day evolving such a weapon is not out of the question.
When the researchers examined the genomes of various reptiles and mammals—including humans—they discovered that they all contained the same types of genes. The only difference is that instead of supporting the production of venom proteins, this network ensures the correct folding of saliva proteins in non-venomous species.
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