Off the coast of Brazil lies an island so treacherous that the government has made it completely off-limits to human visitors. Known as Ilha da Queimada Grande or Snake Island, this 106-acre island is home to one of the most venomous snakes on the planet: the golden lancehead viper. With an estimated population of 2,000 to 4,000 snakes, it’s believed that there is one venomous … [Read more...] about One Snake Per Square Meter: Brazil’s Snake Island Where No Humans Are Allowed