
author
1823–1913
Best known for independently conceiving evolution by natural selection, this tireless explorer helped change how the natural world was understood. His travels in the Amazon and the Malay Archipelago also made him a founding figure in biogeography.

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace, Sir James Marchant

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace

by Alfred Russel Wallace, Sir James Marchant

by Alfred Russel Wallace
Born in 1823, Alfred Russel Wallace was a British naturalist, explorer, geographer, and writer whose name is closely linked with the history of evolution. In 1858, while working in the Malay Archipelago, he outlined the idea of natural selection in a paper that was presented alongside Charles Darwin's work, helping to push one of science's biggest debates into the open.
Wallace spent years collecting specimens and observing wildlife in South America and Southeast Asia. Those journeys shaped not only his thinking about evolution but also his lasting contributions to biogeography, including the famous "Wallace Line," which highlighted a striking divide between animal life in Asia and Australasia.
He was a wider-ranging thinker than many readers realize. Alongside his scientific writing, Wallace wrote on social issues and remained an active public intellectual well into old age. He died in 1913, leaving a legacy that reaches far beyond his often-mentioned connection to Darwin.