The Least Weasel is the smallest carnivore in the world, yet it routinely hunts prey larger than itself using a swift bite to the base of the skull. Its tiny body fits easily inside mouse tunnels, allowing it to raid nests beneath snow and in dense vegetation. Least weasels have an extremely high metabolic rate and must eat frequently to survive.
Best time to see a Least Weasel
The best time to see a Least Weasel is February–August, when about 62% of U.S. sightings happen, based on 149 research-grade iNaturalist observations.
Not certain it is a Least Weasel? What animal is this? walks through what to check first and the lookalikes that catch people out.
Recent Least Weasel sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
Spotted a Least Weasel?
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