pair bond

A relationship, often permanent, formed between a male and female animal; initiated during courtship and maintained after mating.

Japanese Meaning

動物において、雄と雌の間で形成される、通常は永続的な関係―求愛行動の際に始まり、交尾後も維持される絆や組を指す。

During the mating season, some swans establish a pair bond that can last for life.

繁殖期には、一部の白鳥が生涯続くつがい関係を築くことがあります。

Sense（1）

A relationship, often permanent, formed between a male and female animal; initiated during courtship and maintained after mating.

pair bonds

（ plural ）