What did Charles Darwin's do on his ship?

On his voyage aboard the HMS Beagle from 1831 to 1836, Charles Darwin served as the ship's naturalist, conducting extensive observations and collecting specimens of flora, fauna, and geological formations. His studies, particularly in the Galápagos Islands, led him to develop key ideas about evolution and natural selection. The data he gathered during this journey ultimately formed the foundation of his groundbreaking work, "On the Origin of Species."