Researchers in the cave of Antisana where Humboldt and Bonpland stopped in 1802 to collect plants. (IMAGE)

Proceedings of the National Academy of Sciences

Researchers in the cave of Antisana where Humboldt and Bonpland stopped in 1802 to collect plants.

Caption

Researchers in the cave of Antisana where Humboldt and Bonpland stopped in 1802 to collect plants.

Credit

Image courtesy of Pierre Moret.

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