Trimeresurus trigonocephalus, the Sri Lankan pit viper, Ceylon pit viper, Sri Lankan green pitviper or locally, pala polonga, is a venomous pit viper

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Trimeresurus trigonocephalus, the Sri Lankan pit viper, Ceylon pit viper, Sri Lankan green pitviper or locally, pala polonga, is a venomous pit viper species endemic to Sri Lanka.

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Photo credit: © Witthaya Khampanant / Alamy / Afripics
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