Venomous snakes native to the Americas with a rattle-like tail that vibrates as a warning before striking.
From 'rattle' (a chattering sound) + 'snake.' The rattle is made of modified tail scales that create a distinctive warning sound.
Rattlesnakes are incredibly fair fighters—they rattle before striking, making them far less dangerous than snakes that bite without warning, and they'll avoid humans if given the chance, yet they've become symbols of danger in American culture.
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