アメリカ自然史博物館さんのインスタグラム写真 - (アメリカ自然史博物館Instagram)「What a shame Charles Darwin couldn’t have seen the undersea landscape of the Galápagos! His work made these islands off the coast of Ecuador famous for the diversity and uniqueness of their terrestrial life. But the iconic tortoises and finches are only part of the Galápagos story: the scale and complexity of the landforms hidden by the sea also gave rise to an amazingly rich marine ecosystem. Until very recently, the undersea Galápagos—like much of the ocean floor—was mapped at very low resolution. In other words, maps were based on widely spaced depth readings: typically, 0.6 miles (1 kilometer) apart. That meant anything between those points was undetectable. Now, depth points exist for about every 30 feet (10 meters) of portions of the landscape, and scientists continue collecting new data to refine these maps. Learn more about the latest technologies that scientists are using to explore the ocean in the special exhibition Unseen Oceans. Photo: Sodacan, Marine Iguana (Amblyrhynchus cristatus) feeding underwater off Fernandina Island, Galápagos Islands」8月14日 12時09分