They appear to be indestructible, but insects are quietly disappearing in the sixth mass extinction of life on Earth. A photographer specializing in small subjects, Levon Biss presents astonishing close-up images of 40 extinct or endangered species in the American Museum of Natural History's collection. They range from imperiled old friends like the monarch butterfly and the nine-spotted ladybug to the Lord Howe Island stick insect, the giant Patagonian bumblebee, and the Stygian shadowdragon.