What Does “A Labor of Moles” Mean?
“Labor” is a fitting word for an animal whose entire life is built around constant digging. Moles spend most of their time underground excavating extensive tunnel systems, work that is genuinely physically demanding given their small size, and a single mole can move a striking amount of soil in a day while foraging for earthworms and grubs along its tunnel network.
Despite the name, moles are actually largely solitary animals for most of the year, defending their own tunnel systems and only really coming together to breed, which makes a true “labor of moles” a fairly rare sight in the wild. The collective noun likely reflects their relentless, tireless digging habits, rather than any tendency to work as a coordinated group, an ironic mismatch similar to other collective nouns that describe behavior rather than actual social structure.
Example: “The gardener joked that a labor of moles had turned his lawn into a minefield overnight.”
Related: Collective Nouns for Mammals