House mouse (house mouse) - House mouse

Japanese: イエネズミ(家鼠) - イエネズミ

Mice that live in human dwellings and nearby farmland, living semi-parasitically on human society. Usually, it refers to three species: the brown rat, the brown rat, and the house mouse. In contrast, mice that live in the wild in natural environments such as mountains and fields are called field mice. Even if a field mouse temporarily invades a human dwelling, it is not called a house mouse. The above three species have wild ancestors in Central Asia and Southeast Asia, but they are the only mammals that have adapted to the new habitat of human society and succeeded in parasitizing it, and as a result have expanded their distribution and thrived all over the world.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

人家およびその付近の農耕地などにすみ，人間社会に半ば寄生して生活するネズミ。ふつうドブネズミ，クマネズミ，ハツカネズミの3種を指す。これに対し，山野などの自然環境下で野生生活をおくるネズミをノネズミ(野鼠)という。ノネズミが一時的に人家に入り込んでもイエネズミとはいわない。　上記3種は中央アジア，東南アジアなどに野生の原種をもつが，人間社会という新たな生息環境に適応し，寄生することに成功した唯一の哺乳類で，それによって世界中に分布を拡大し，繁栄している。

出典　株式会社平凡社世界大百科事典第２版について　情報

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