Visiting the Galapagos Islands — which have long been considered Charles Darwin’s natural laboratory — is like stepping into a nature documentary. You can snorkel with playful sea lions, watch “Darwin’s finches” feed and inch up to ancient giant tortoises.
Elizabeth Hennessy is an assistant professor of history and environmental studies at the University of Wisconsin at Madison and the author of “On the Backs of Tortoises: Darwin, the Galápagos, and the Fate of an Evolutionary Eden.”