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How Species Change over Time

Charles Darwin journeyed to the Galapagos Islands off the coast of finchescactusEcuadortreesSelect your answer. Here he discovered cacti the size of insectstwigstreesfinchesSelect your answer. He encountered iguanas that swam and fed on underwater twigsalgaeinsectstreesSelect your answer. Darwin discovered the largest land finchestortoisestreesinsectsSelect your answer in the world. He observed differences in beak shapes of 14 species of tortoisesfinchesalgaeshellsSelect your answer. Darwin’s research revealed that insectsbeak shapetreestwigsSelect your answer corresponds to the food each bird eats. Finches that eat nuts and seeds have short, thick beaks to crack shellsalgaefinchesSelect your answer. Those that feed on twigsEcuadorcactustortoisesSelect your answer plants have longer beaks for reaching between the spines. Finches that eat finchestreesinsectstortoisesSelect your answer have smaller, pointed beaks. The woodpecker finch uses cactusshellsalgaetwigsSelect your answer to pry food from bark.