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Between 1831 and 1836, while traveling on the Galapagos Islands, English naturalist Charles Darwin, noted resemblances between fossil collections he had recently made of extinct glyptodons and nearby living armadillos, an animal which he had never seen before. The similarities between these two unusually scaly animals and their similarly restricted geographic distribution provided Darwin with a clue that helped him develop his theory of how evolution occurs.[1]




  1. ^ Starr, Cecie (1992). Biology - the Unity and Diversity of Life. Wadsworth Publishing. ISBN 0534165664. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)