Mustela nivalis (European Weasel) is a species of mammals in the family Mustelidae. They are found in the palearctic and The Nearctic. They are carnivores. Individuals are known to live for 9.1 years.
Definition: The duration of the development from fertilized, deposited or implanted egg to hatching/birth. Corresponds to egg incubation duration in oviparous animals and to gestation period duration in viviparous animals.