Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin made during his time aboard the H.M.S. Beagle prompted him to ask which question?
Do living organisms change over time and, if so, how?
Are the finches of the Galapagos Islands the same as those on the mainland?
Can selective breeding occur in nature?
Can the accumulation of gradual changes in a population lead to a new species over time?