The Western Hemisphere's largest snake, it's also called a water boa

Answer Anaconda

Weighing in at up to 150 pounds, the green anaconda is the heaviest snake on the planet. It's also one of the world's longest: adult females can stretch up to fifteen feet! So next time you find yourself east of the Andes in Colombia, or in Venezuela, the Guianas, Ecuador, Peru, Bolivia, Brazil, or Trinidad and Tobago... stay alert.

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