otter

The otter, a skilled swimmer and diver, is a fascinating aquatic creature that plays an important role in the ecosystem. This fact sheet provides a detailed overview of the otter's biology and lifestyle and emphasizes the importance of its protection and conservation in natural habitats.

  • Scientific classification

    • Class: Mammals (Mammalia)
    • Order: Carnivora
    • Family: Martens (Mustelidae)
    • Genus: Lutra
    • Species: L. lutra (European otter)
  • Physical characteristics

    • Size: Body length of 60-90 cm
    • Tail length: 35-45 cm
    • Weight: 5-14 kg
    • Special features: Slender, muscular body, elongated tail, dense, water-repellent fur, small ears and eyes, strong, webbed paws.
  • Habitat and distribution

    • Common regions: Europe, Asia, North Africa
    • Habitat: Waters such as rivers, lakes, streams and wetlands; prefers undisturbed, clean waters with abundant food supplies.
  • Nutrition

    • Diet: Carnivore
    • Typical food: fish (e.g. trout, grayling), crabs, insects, small mammals, amphibians and birds.
  • Reproduction and lifestyle

    • Mating season: winter to spring
    • Gestation period: Approx. 60-63 days
    • Litter size: 1-6 young per litter
    • Lifestyle: Solitary, nocturnal or crepuscular, excellent swimmers and divers. They live in self-dug burrows (floating tubes) or use natural hiding places along bodies of water.
  • Lifespan and protection status

    • Life expectancy: Up to 15 years in the wild
    • Threat status: Threatened in many regions due to habitat loss, water pollution, and illegal hunting. The European otter is considered "least concern," but many populations are locally threatened.
    • Conservation measures: protection and restoration of habitats, combating water pollution, raising awareness about otter conservation and promoting near-natural waters.