Ilha da Queimada Grande, better known as Snake Island, is one of the deadliest places on Earth. Situated off Brazil’s coast, it is the only home to the venomous golden lancehead pit vipers. These snakes, growing up to half a meter, have venom five times stronger than that of other pit vipers. The island is so dangerous that Brazil prohibits public visits.

Thousands of years ago, rising sea levels isolated the island from the mainland. The snakes evolved, feeding mainly on birds. Their venom quickly immobilizes prey, making them highly effective hunters.

Researchers occasionally visit the island to study the snakes, but strict limits apply. The island also has a lighthouse built in 1909. Once manned, the lighthouse is now automated, due to the extreme danger posed by the vipers.

Legends claim the island holds one snake per square meter, but the actual population is smaller. However, the risk of encountering these venomous reptiles remains significant.

Today, Snake Island remains a mysterious and uninhabited spot. Only researchers brave its dangers to explore this unique ecosystem. The island’s isolation allowed its snake population to thrive, adding to its dangerous allure.