Lichens On Galapagos Giant Tortoises

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Science  19 Jun 1964:
Vol. 144, Issue 3625, pp. 1463
DOI: 10.1126/science.144.3625.1463


The association of Physcia picta with the giant Galdpagos tortoise is believed to be the first reported occurrence of lichens on land animals. The habitat is restricted to specific sites on the carapace of male tortoises.