Darwin's ideas fell into place while contemplating __________.

Question

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Darwin's ideas of evolution and natural selection were solidified while studying finches on the Galapagos Islands. He observed variations in beak shape and size between different species of finches that allowed them to adapt to different food sources on the islands. This led him to theorize that adaptations that lead to better survival and reproduction would become more common over time through natural selection.

Darwin's Ideas Fell into Place While Contemplating __________