Madison, WI – The Wisconsin Department of Natural Resources (DNR) is asking residents to keep an eye out for the world’s smallest carnivore — the least weasel — as sightings rise across southern Wisconsin this fall.
According to the DNR, the least weasel can be recognized by its small size — just six to eight inches long — and its tail, which lacks a black tip. The species’ winter coat is pure white, helping it blend in with snow-covered landscapes, while in summer it turns brown.
The elusive predator is most active in the southern portion of the state, particularly in grasslands, pastures, and wooded areas. Unlike other weasels, it hunts both day and night, preying on mice and other small animals.
Wildlife officials note that Wisconsin has three species of weasels, but the least weasel is often overlooked due to its size and secretive behavior. The DNR is encouraging anyone who spots one to report sightings through the iNaturalist app to assist with tracking populations.
“Wisconsin’s weasels are an important part of the ecosystem,” the DNR said in a recent post. “Your reports help us better understand their range and seasonal behavior.”
Residents are encouraged to photograph sightings safely and avoid disturbing the animal.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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