An Amazonian snake has two types of venom that kill different prey | Innovation

The Amazon puffing snake has evolved two types of venom

The Amazon puffing snake has evolved two types of venom

Description:Bernard Dupont (CC BY-SA 2.0)

The venomous fangs of the Amazon puffing snake are a double-edged sword. This South American tree snake has developed a venom with toxins that target different – one for killing small mammals like rodents, and another that targets birds and lizards.

“Other tree snakes, when they feed on mammals, they use constriction,” says Stephen Mackessy at the University of Northern Colorado, who studied the venom produced by . “These Amazon puffing snakes are not very good constrictors, so they’re …

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