Charles Darwin, during his voyage on the HMS Beagle, observed several key things on the Galápagos Islands that contributed to his theory of natural selection:

1. Unique Species: Darwin noticed that the islands had many species that were not found anywhere else in the world. This suggested to him that species could change over time, adapting to new environments.

2. Variation Among Similar Species: He also observed that similar species varied from island to island. For example, the finches on the islands had different beak shapes depending on their diet.

3. Fossil Evidence: Darwin found fossils of extinct animals that were similar to modern species. This suggested that modern species had evolved from extinct ones.

4. Influence of Environment: He noticed that the characteristics of species seemed to be suited to their environments. For example, the giant tortoises had different shell shapes depending on their habitat.

These observations led Darwin to propose his theory of evolution by natural selection, which suggests that species evolve over time through a process of slow, gradual changes.

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Charles Darwin, during his voyage on the HMS Beagle, observed several key things on the Galápagos Islands that contributed to his theory of natural selection:

1. Unique Species: Darwin noticed that the islands had many species that were not found anywhere else in the world. This suggested to him that species could change over time, adapting to new environments.

2. Variation Among Similar Species: He also observed that similar species varied from island to island. For example, the finches on the islands had different beak shapes depending on their diet.

3. Fossil Evidence: Darwin found fossils of extinct animals that were similar to modern species. This suggested that modern species had evolved from extinct ones.

4. Influence of Environment: He noticed that the characteristics of species seemed to be suited to their environments. For example, the giant tortoises had different shell shapes depending on their habitat.

These observations led Darwin to propose his theory of evolution by natural selection, which suggests that species evolve over time through a process of slow, gradual changes.

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Charles Darwin, during his voyage on the HMS Beagle, observed several key things on the Galápagos Islands that contributed to his theory of natural selection:

1. Unique Species: Darwin noticed that the islands had many species that were not found anywhere else in the world. This suggested to him that species could change over time, adapting to new environments.

2. Variation Among Similar Species: He also observed that similar species varied from island to island. For example, the finches on the islands had different beak shapes depending on their diet.

3. Fossil Evidence: Darwin found fossils of extinct animals that were similar to modern species. This suggested that modern species had evolved from extinct ones.

4. Influence of Environment: He noticed that the characteristics of species seemed to be suited to their environments. For example, the giant tortoises had different shell shapes depending on their habitat.

These observations led Darwin to propose his theory of evolution by natural selection, which suggests that species evolve over time through a process of slow, gradual changes.

What did Charles Darwin observe on the Galápagos Islands?

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