Qualla: Ilha da Queimada Grande

Ilha da Queimada Grande: Introduction

Mon, 09 Mar 2026 00:00:00 GMT

The last person to live on Ilha da Queimada Grande was a lighthouse keeper. When the lighthouse was automated in the 1920s, the keeper left, and no one has lived there since. What remains is a 43-hectare island roughly 33 kilometers off the coast of São Paulo state, closed to the public by the Brazilian Navy, accessible only to researchers with special permission from the Chico Mendes Institute for Biodiversity Conservation. The reason is coiled in the branches of its remaining rainforest: somewhere between 2,000 and 4,000 golden lancehead pit vipers, one of the most venomous snakes in Latin America, found nowhere else on Earth.

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Ilha da Queimada Grande: The Island the Ice Age Made

Mon, 09 Mar 2026 00:00:00 GMT

Queimada Grande was not always an island. Thousands of years ago, during the last ice age, it was connected to the Brazilian mainland by a land bridge. When sea levels rose, the connection drowned, and whatever animals happened to be on the rock were stranded. For most species, i...

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Ilha da Queimada Grande: Burned Ground

Mon, 09 Mar 2026 00:00:00 GMT

The island's name tells a story of human ambition defeated. Queimada means "forest fire" in Portuguese, and the name comes from historical attempts by locals to clear the land by burning, hoping to establish a banana plantation. The fires stripped portions of the island to bare r...

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Ilha da Queimada Grande: Counting Snakes on a Forbidden Shore

Mon, 09 Mar 2026 00:00:00 GMT

Popular accounts once claimed the island held 430,000 snakes, a number that would mean roughly one snake per square meter of surface area. The first systematic population study told a different story. Researchers estimated 2,000 to 4,000 golden lanceheads, nearly all of them conc...

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Ilha da Queimada Grande: Protected from Both Sides

Mon, 09 Mar 2026 00:00:00 GMT

In 1985, the Brazilian government created the Ilhas Queimada Pequena e Queimada Grande Area of Relevant Ecological Interest, encompassing 33 hectares of protected territory that includes the island and its smaller neighbor to the west. The Brazilian Navy enforces the closure. Onl...

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