weasel

The weasel, a small and skilful hunter, is found in a variety of habitats and plays an important role in the ecosystem as a regulator of small mammal populations. This fact sheet provides a detailed overview of the biology and lifestyle of the weasel and highlights the importance of its protection and conservation in natural habitats.

15 to 25 cm in body length and 30 to 100 g – that's what a weasel achieves when fully grown. As a carnivore, the weasel eats small mammals such as mice, rats, birds, insects, and eggs. Its life expectancy is up to 2 years.

  • Scientific classification

    • Class: Mammals (Mammalia)
    • Order: Carnivora
    • Family: Martens (Mustelidae)
    • Genus: Mustela
    • Species: M. nivalis (weasel)
  • Physical characteristics

    • Size: Body length of 15-25 cm
    • Tail length: 3-6 cm
    • Weight: 30-100 g
    • Special features: Slender build, short legs, pointed face, brown to reddish-brown fur with white underside, short bushy tail.
  • Habitat and distribution

    • Common regions: Europe, North America, Asia
    • Habitat: Diverse, from forests to meadows and fields to mountainous regions; adaptable to different habitats.
  • Nutrition

    • Diet: Carnivore
    • Typical food: small mammals such as mice, rats, birds, insects, eggs, occasionally frogs and small fish.
  • Reproduction and lifestyle

    • Mating season: spring to summer
    • Gestation period: Approx. 30-35 days
    • Litter size: 4-6 young per litter
    • Lifestyle: Solitary, nocturnal, excellent hunters and climbers, territorial animals.
  • Lifespan and protection status

    • Life expectancy: Up to 2 years in the wild
    • Endangered status: Not threatened, but habitat loss and hunting may affect local populations.
    • Conservation measures: preservation and protection of habitats, promotion of natural prey.
  • This is how big the weasel really is

    • Weasel: 7 × 10 cm

    Dimensions of the life-size standees (width × height), printed at a 1:1 scale.

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