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This island off the coast of Brazil is illegal to visit. Why? This is Snake Island. It's populated by 4,000 golden lancehead viper snakes, and they're not so friendly to humans. What would happen if you tried to coexist with these repitles?

Transcript and sources:

00:00 Snake island
00:48 Tropical death trap
01:30 Snake danger
02:24 Venom evolution

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#WhatIf #SnakeIsland #Vipers #Reptiles

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