From the October 3, 1931 issue
A SEA-GOING LIZARD FROM GALAPAGOS

When Darwin, as a young naturalist just out of school, visited the Galpagos islands, he saw a number of things that helped to crystallize and precipitate in his mind the concept, already seeded there, that later revolutionized all biology and much of philosophy. Not the least provocative of speculation was a most peculiar species of sea-going lizard, the marine iguana that basked–and still does bask–in thousands on the sun-warmed rocks, slipping off into the water betimes to browse on the thick-growing seaweeds.