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I think you mean the concept of gradualism and the man is Charles Lyell, whose geological concept proceeded Darwin's biological concept and also gave Darwin his ideas on ages of the earth and gradual processes over time. I can think of not other geologist that was a confidant of Darwin, though Adam Sedgewick, a geologist, was am early teacher of Darwin. He was a catastrophist though.
James Hutton and Charles Lyell were the two scientists that helped Darwin recognize how old the Earth is.
AnswerCharles Lyell, lawyer and geologist who developed the theory of uniformitarianism in geology is commonly recognised as the one person who had the most profound influence on Darwin. Captain Fitzroy with whom Darwin sailed on his famous voyage on the Beagle, gave Darwin a copy of Lyell's 'Principles of Geology'. It is difficult to say who had the second greatest influence, but certainly his grandfather Erasmus Darwin, who himself wrote on Evolution had a great influence.
The book made Darwin think that sense the earth is so old, there would be plenty of time for organisms to change slowly.
Darwin's observations supported Lyell's theory of ancient earth because he theorized that geology evolves the same way animals did!
Charles Lyell influenced Charles Darwin's development of his evolutionary theory.
Lyell became one after Darwin was heavily influenced by his theory about gradual geological processes.
lyell
Charles Lyell's book "Principles of Geology" influenced Darwin by introducing him to the concept of gradual change over long periods of time, which aligned with his ideas of natural selection and evolution. Lyell's emphasis on the slow and steady processes of geological change provided Darwin with evidence and a framework to support his theory of evolution by natural selection. Darwin recognized the importance of Lyell's theories in shaping the environment in which species evolved, helping him develop his own ideas on the mechanisms of evolution.
organisms change over time
Darwin read "Principles of Geology" by Charles Lyell during his voyage on the Beagle. This book influenced Darwin's thinking on the gradual change of landscapes over time, which later contributed to his theory of evolution by natural selection.
I think you mean the concept of gradualism and the man is Charles Lyell, whose geological concept proceeded Darwin's biological concept and also gave Darwin his ideas on ages of the earth and gradual processes over time. I can think of not other geologist that was a confidant of Darwin, though Adam Sedgewick, a geologist, was am early teacher of Darwin. He was a catastrophist though.
Lyell's book "Principles of Geology" influenced Darwin by introducing him to the idea of gradual changes in Earth's landscape over long periods of time. This concept sparked Darwin's thinking about how species could also change over time through natural selection, which eventually led to the development of his theory of evolution.
Lyell's ideas on uniformitarianism, which suggested that geological processes occur at a slow and steady pace over time, provided a framework for understanding Earth's history. This concept of gradual change over long periods of time influenced Charles Darwin's thinking, as it allowed for the possibility of slow, incremental changes leading to the diversity of life observed on Earth. Darwin's theory of evolution by natural selection was therefore supported by Lyell's principles of uniformitarianism.
Charles Lyell, a geologist and friend of Darwin, encouraged him to publish his first book "On the Origin of Species." Lyell believed in the theory of evolution and saw the potential impact of Darwin's work on the scientific community.
malthus, lyell, his teachers, and many more
scientist whose ideas about evolution were the same as Darwin's- Wallace geologist who influenced Darwin- Lyell geologist who influenced Darwin- Hutton scientist whose ideas about evolution and adaptation influenced Darwin- Lamarck economist whose ideas about human population influenced Darwin-Malthus