Charles Darwin Charles Darwin wondered why so many diverse species inhabited the remote and barren Galapagos Islands off the coast of Ecuador. Without deer or elk to compete for food, the tortoises evolved to great size. Some finches took over the role of woodpeckers by using tools; others learned to peck birds and iguanas to supplement scarce water with blood. Darwin arrived in the Galapagos in 1835 and published his theory of evolution 20 years later. Charcoal sketch by Iturra de Su.
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