TaxonHub
Least Weasel

Least Weasel

Mustela nivalis

The smallest living carnivoran species, a tiny, elongated mustelid with remarkable hunting capabilities and widespread distribution across Eurasia and North America

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Least Weasel
Least Weasel
Least Weasel
Least Weasel
Least Weasel
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Ecology & Habitat

Habitat

Diverse ecosystems including grasslands, forests, tundra, agricultural landscapes, alpine regions, ranging from sea level to 4,000 meters elevation

Ecological Role

Critical predator controlling rodent populations, maintaining ecological balance in small mammal food webs

Morphology

  • SKIN COAT Dense fur, white winter pelage in northern populations for camouflage, brown-reddish summer coloration
  • LIMBS WINGS Short legs, sharp non-retractable claws, agile locomotion for hunting small prey
  • HEAD SENSORY Pointed snout, large eyes, acute hearing, sensitive whiskers for navigating complex environments
  • BODY STRUCTURE Extremely slender body, typically 15-25 cm long, weighing 25-55 g, elongated cylindrical shape enabling pursuit of prey in narrow burrows
Data Source: TaxonHub Database
Image Credit: Սերգեյ Զալինյան
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Related Species in Mustelidae