Darwin Visits Galapagos
Charles Darwin arrived in the Galapagos Islands, observations that would inspire evolution theory
September 15, 1835
A Voyage That Changed Science
Charles Darwin visited the Galapagos Islands in September and October 1835 as part of the five-year voyage of HMS Beagle. He spent about five weeks in the archipelago, exploring four of the main islands. Darwin was only 26 years old and was serving as the ship's naturalist. He collected plants, animals, insects, and rocks from each island and made careful observations. At the time, he did not yet fully understand the significance of what he was seeing.
What Darwin Noticed
Darwin observed that animals on different islands, though clearly related to each other and to South American species, had developed distinct differences. The giant tortoises on different islands had differently shaped shells. The finches he collected had beaks of varying shapes and sizes, each suited to different food sources. After returning to England and consulting with ornithologist John Gould, Darwin realized these were not different varieties of the same species — they were distinct species. This planted the seed of his theory of evolution by natural selection.
The Theory That Followed
Darwin spent more than twenty years refining his ideas before publishing "On the Origin of Species" in 1859. The book argued that species change over time through a process of natural selection: individuals with traits better suited to their environment survive and reproduce more successfully, passing those traits to the next generation. The theory transformed biology, medicine, and our understanding of life on Earth. The Galapagos Islands remain one of the most important natural laboratories in the history of science. Check how many years ago Darwin visited.