Assertion: venomous viper | /r/AtLocation | america
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Source sentences:
text: The Crotalinae, commonly known as pit vipers, crotaline snakes (named for the Ancient Greek: κρόταλον krotalon castanet/rattle of a rattlesnake's tail), or pit adders, are a subfamily of venomous vipers found in Eurasia and the Americas.
text: Pit vipers are a subfamily of venomous vipers found in the Americas and Asia.