Darwinists may imagine that Darwin made stunning discoveries following his voyages on HMS Beagle, and that he developed the concept of evolution that way.
Of course, there’s so much to consider regarding new scientific discoveries
What Darwin actually did on the Beagle is this: Darwin embarked on a naval adventure lasting several months, yelling out with drunken crew members. He collected plants and insects, but didn’t go to the bother of looking after them, and just set them to one side (One can find details in his autobiography). What people think of as scientific research is Darwin’s naval trip spent drinking with membership of the crew. Darwin later proposed the distorted ideas of his grandfather, a freemason, as though they were a great scientific discovery and led masses of the population to a heathen religion.