In 1831, the Royal Navy sent the ship HMS Beagle to map the coasts of South America, the Falklands Islands and the Galapagos Islands. The navy needed this knowledge in order to tighten Britain’s imperial grip over South America. The ship’s captain, who was an amateur scientist, decided to add a geologist to the expedition to study geological formations they might encounter on the way. After several professional geologists refused his invitation, the captain offered the job to a twenty-two-year-old Cambridge graduate, Charles Darwin.
