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Darwin's Voyage: Insights into Evolution and Adaptation in Island Species

Charles Darwin's groundbreaking voyage provided essential insights into the theory of evolution. During his travels, especially in the Galápagos Islands, he observed significant variances among species, such as tortoises with long necks in areas with tall plants and finches with strong beaks in regions abundant with hard-shelled nuts. These adaptations indicate how species evolve to better thrive in their specific environments. Moreover, Darwin's discovery of fossils and geological evidence revealed an ancient Earth and the evolutionary links between extinct and modern animals.

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Darwin's Voyage: Insights into Evolution and Adaptation in Island Species

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  1. KEY CONCEPT Darwin’s voyage provided insight on evolution.

  2. Darwin observed differences among island species. • Variation is a difference in a physical trait. • Galápagos tortoises that live in areas with tall plants have long necks and legs. • Galápagos finches that live in areas with hard-shelled nuts have strong beaks.

  3. Species are able to adapt to their environment. • Adaptations can lead to genetic change in a population. • An adaptations is a feature that allow an organism to better survive in its environment.

  4. Darwin observed fossil and geologic evidence supporting an ancient Earth. • Darwin found fossils of extinct animals that resemble modern animals. • Darwin found fossil shells high up in the Andes mountains.

  5. He saw land move from underwater to above sea level due to an earthquake. • Darwin extended his observations to the evolution of organisms.

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