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  1. Tantalizing Tortoises and the Darwin-Galápagos Legend.Frank J. Sulloway - 2009 - Journal of the History of Biology 42 (1):3 - 31.
    During his historic Galápagos visit in 1835, Darwin spent nine days making scientific observations and collecting specimens on Santiago (James Island). In the course of this visit, Darwin ascended twice to the Santiago highlands. There, near springs located close to the island's summit, he conducted his most detailed observations of Galapagos tortoises. The precise location of these springs, which has not previously been established, is here identified using Darwin's own writings, satellite maps, and GPS technology. Photographic evidence from excursions to (...)
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