worm grunting
n.— «Earthworms are sensitive to low-frequency vibrations. These drive some types of earthworms to the surface, and in the southeastern US is used in a practice known as “worm grunting,” by scraping a piece of metal on a wooden stake in the ground. Within a minute or so, the vibrations bring the earthworms up to the surface where they are easily caught.» —“Weather Eye: look to earthworms for advice on flooding” by Paul Simons Times (London, England) Oct. 17, 2008. (source: Double-Tongued Dictionary)
Further reading
Enthusiastic book recommendations! Martha’s savoring the biography of Alexander von Humboldt, the 19th-century explorer, polymath, and naturalist who revolutionized our understanding of nature and predicted the effects of human activity on...
