Charles Darwin

Charles Robert Darwin (1809–1882) sailed as unpaid naturalist aboard HMS Beagle on a five-year voyage around the globe (1831–1836). Observing mockingbirds, giant tortoises, and finches in the Galápagos Islands, alongside marine fossils elevated in the Andes, Darwin began formulating his radical theory of life.

Working in quiet seclusion at Down House in Kent, he spent twenty years gathering evidence from botany, animal breeding, and embryology before co-presenting with Alfred Russel Wallace in 1858. In November 1859, he published On the Origin of Species by Means of Natural Selection, demonstrating that all living species evolved from common ancestors through survival advantages in changing environments.