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Dragonsnakes and Filesnakes Revisited

I’ve written about both filesnakes (family Acrochordidae) and dragonsnakes (part of the family Xenodermidae1) before. Traditional snake taxonomy suggests that, although they branch off from the main stem of the snake family tree at about the same time, they’re not very closely related. But, new evidence emphasizes the uniqueness of dragonsnakes and thickens the plot in the unfolding story of the evolution of snakes. Leer más.

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