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Charles Darwin

Charles Darwin. Theory of Evolution. Charles Darwin was a young man who set sail from England in 1831 on a five year trip around the world. He was known as the ship’s naturalist – a person who studies the natural world.

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Charles Darwin

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  1. Charles Darwin Theory of Evolution

  2. Charles Darwin was a young man who set sail from England in 1831 on a five year trip around the world. He was known as the ship’s naturalist – a person who studies the natural world.

  3. On his voyage Darwin observed many different plants and animals. He was amazed by the diversity of living things. Today scientists have identified over 1.7 million species of organisms on Earth.

  4. Darwin saw the fossil bones of animals that died long ago. Fossils: preserved remains or traces of organisms that lived in the past. These bones resembled the bones of living animals, only they were much larger. Darwin wondered what had happened to the giant creatures from the past.

  5. In 1835, the HMSBeagle reached the Galapagos Islands.

  6. Comparisons Among Organisms South America Iguanas: small claws for climbing trees to eat leaves Galapagos Islands Iguanas: large claws to grip slippery rocks and eat seaweed

  7. Darwin made these drawings of four species of Galapagos finches. The structure of each bird’s beak is an adaptation related to the type of food the bird eats. Can you guess what each bird may have eaten?

  8. Darwin reasoned that animals that arrived on Galapagos faced conditions that were different from those on the mainland. Thus, he hypothesized that as the species gradually changed over many generations they became better adapted to the new conditions. Evolution: the gradual change in a species over time Just as dog breeders might choose offspring with desirable traits to mate, Darwin thought that a process similar to selective breeding might happen in nature.

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