Off the coast of Brazil lies a small but terrifying island—Ilha da Queimada Grande. Known as “Snake Island,” this place is so dangerous that the Brazilian government has banned all visitors. Only the navy and approved scientists are allowed to step foot there.
A Snake Every Few Steps
The island is home to an astonishing number of venomous snakes. Experts estimate there’s about one snake per square meter. The most famous resident is the golden lancehead pit viper, a critically endangered species found nowhere else on Earth.
Thousands of years ago, rising sea levels cut the island off from the mainland, trapping these snakes. Over time, they evolved into a unique and highly venomous species.
Why Is It So Dangerous?
The golden lancehead’s venom is extremely potent—capable of melting human flesh. With so many snakes in such a small area (the island is only 106 acres), even a short visit could be deadly.
Earlier reports claimed there were 430,000 snakes, but recent studies show a much smaller number—between 2,000 and 4,000. Most live in the island’s rainforest, hidden from sight.
Strict Rules to Protect Humans—and Snakes
To keep people safe (and to protect the endangered vipers), Brazil has made it illegal for tourists to visit. Only researchers with special permission from the Chico Mendes Institute for Biodiversity Conservation can go—and even then, under strict supervision.
The Brazilian Navy also monitors the island to prevent illegal visits.
A Forbidden Wonder
Snake Island remains one of the most fascinating—and deadly—places on Earth. While its golden lanceheads are a scientific marvel, they also make it a place where humans simply aren’t welcome.
For now, this slithering kingdom remains untouched, ruled by its venomous inhabitants.
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