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Is the black-and-yellow mangrove snake venomous?

The venom of the black-and-yellow mangrove snake (Boiga dendrophila) contains the neurotoxin denmotoxin, which is specifically toxic to birds—the snake’s main prey. It causes paralysis in birds but is only weakly toxic to mammals such as mice. Humans may experience swelling and skin discoloration after being bitten by a black-and-yellow mangrove snake.