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Japanese weasel

Mustela nivalis namiyei

MammalThe Japanese weasel is…

Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Mammal
Species
Mustela nivalis

Habitat

The Japanese weasel primarily inhabits forests, grasslands, and agricultural areas in Japan, including the islands of Honshu, Shikoku, and Kyushu. It prefers regions with dense vegetation for cover and proximity to water sources, adapting well to both rural and suburban environments.

Diet

The Japanese weasel mainly consumes small rodents, birds, and their eggs, along with insects and occasionally amphibians. It is an opportunistic hunter, actively foraging at night using its keen senses to locate prey in burrows or on the ground. Feeding behavior varies seasonally based on prey availability.

Behavior

Japanese weasels are solitary and territorial animals, marking their ranges with scent to avoid encounters with others. They are primarily nocturnal, spending nights hunting and days resting in dens or burrows. These weasels exhibit agile, curious behavior, often exploring new areas while being cautious of threats.

Conservation Status

The Japanese weasel is classified as Least Concern by the IUCN, with a stable population trend overall. Major threats include habitat loss due to urbanization and road accidents.