How did Darwin get selected to sail on the HMS beagle?

Charles Darwin was selected to sail on the HMS Beagle primarily due to his connections and enthusiasm for natural history. His mentor, Professor John Stevens Henslow, recommended him to Captain Robert FitzRoy, the ship's commander, as the ship's naturalist for the voyage. Darwin's background in the study of natural sciences and his keen interest in collecting specimens made him an ideal candidate for the expedition, which aimed to chart the coast of South America and conduct scientific research.