How the Worm Turns

From a New York Times OP-ED by Amy Stewart the author of “The Earth Moved: On the Remarkable Achievements of Earthworms”

But earthworm taxonomists don’t have it so easy. One has to dig for earthworms, and even though they are blind and deaf, worms are remarkably good at evading the probes and shovels of nosy scientists. There’s also the problem of knowing where to dig. An ornithologist can simply meander through a forest and look up; an oligochaetologist must keep an ear to the ground, so to speak, and try to divine the ideal earthworm habitat.