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The original was posted on /r/todayilearned by /u/parkesc on 2023-07-24 22:12:22.

Original Title: TIL about Snake Island, an island off the coast of São Paulo, Brazil which is closed to the public for safety reasons. It is the only known home of the endangered Golden Lancehead, whose cytotoxic venom is up to 5 times stronger than other pit vipers.