Biologist · 1809 – 1882

Charles Darwin

Key Takeaways

  • Darwin developed the theory of evolution by natural selection.
  • His evidence came largely from the five-year voyage of HMS Beagle.
  • On the Origin of Species (1859) became the foundation of modern biology.
  • His ideas transformed science and humanity's view of itself.

Charles Darwin transformed our understanding of life on Earth. A careful, modest naturalist, he produced one of the most powerful and far-reaching ideas in the history of science: evolution by natural selection.

The voyage of the Beagle

As a young man, Darwin spent five years aboard HMS Beagle, observing the geology and wildlife of South America and, famously, the Galápagos Islands. The astonishing variety and adaptation of species he saw planted the seeds of his theory.

On the Origin of Species

For two decades Darwin gathered evidence, hesitating to publish a theory he knew would be explosive. Spurred at last by Alfred Russel Wallace’s independent discovery, he published On the Origin of Species in 1859. Its argument — that the diversity of life arose through the survival and reproduction of better-adapted organisms — became the foundation of modern biology.

Legacy

Darwin’s theory unified the life sciences and reshaped philosophy, religion and humanity’s sense of its own origins. Like the revolution of Einstein in physics, his work stands among the supreme achievements of science — and traces a line back to the ancient biology of Aristotle.

Influence

Darwin's theory of evolution unified the life sciences, provided the framework for all modern biology and medicine, and profoundly reshaped philosophy and humanity's understanding of its origins.

Legacy

Evolution by natural selection is one of the best-supported theories in science, and Darwin ranks among the most influential scientists in history.

Major Works

  • On the Origin of Species
  • The Descent of Man
  • The Voyage of the Beagle

Controversies

  • His theory challenged literal readings of creation and provoked enduring religious and social debate.

Notable Quotes

“It is not the strongest of the species that survives, but the one most responsive to change.”
— Attributed (paraphrase)

Connections

Frequently Asked Questions

Who was Charles Darwin?

Charles Darwin (1809–1882) was an English naturalist whose theory of evolution by natural selection became the foundation of modern biology.

What is natural selection?

It is the process by which organisms better adapted to their environment tend to survive and reproduce more, gradually shaping the evolution of species over time.

Biography Books

  • On the Origin of Species — Charles Darwin (1859)intermediate

    Darwin's revolutionary work on evolution.

    View on Amazon ↗

Citations & Sources

  1. Encyclopædia Britannica — 'Charles Darwin'.

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