European otter (Lutra lutra)
Group formation: Solitary territorial, females with 1-4 cubs
Size: 57-95 cm
Weight: 7-12 kg
Age: 16 yrs
Gestation: 60-64 days (non-seasonal breeders)
Sexual maturity: females 2.5 yrs
Diet: large variety of prey species (fish, invertebrates) but learn preferred prey from their mothers.
Distribution: most widely distributed otter species, from parts of Asia and Africa and across Europe.
Norway: common along the coast of Norway
Conservation Status: Near Threatened ver 3.1, Pop. trend: decreasing
Threats: chemical and plastic pollution, entanglement in fishing gear, over fishing.