If you don't like snakes, or if you value your life, you probably don't want to go to Ilha de Queimada Grande. This island off the coast of Sao Paulo, Brazil, which is nicknamed "Snake Island" is home to the Golden Lancehead Viper.
This viper is one of the deadliest snakes in the world and the island has as many as one of these venomous creatures per square meter.
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The Brazilian navy bans any civilians from setting foot on the island, but scientists are sometimes given permission to visit. Despite having their own private island, the Golden Lanceheads are considered in danger of extinction because those 110 acres are their only habitat.
And this habitat could be easily wiped out be a wild fire. The snake population is also negatively affected by inbreeding.