domestic dog
Refers to the domestic dog as a species (Canis lupus familiaris), often in scientific or formal contexts. In everyday speech, 犬 (いぬ) is more common.
The domestic dog was domesticated from wolves.
イエイヌの起源については諸説ある。
There are various theories about the origin of the domestic dog.
Katakana spelling is common in biological contexts; usually written in kana.
Kanji spelling exists but is rarely used; the word is usually written in kana.
Compound of 家 (いえ, 'house, home') and 犬 (いぬ, 'dog'). The reading is a straightforward combination of the kun'yomi of each kanji.