noun
A biological term referring to the process by which certain traits become more common due to mate choice or competition for mates.
クジャクの派手な羽は雌雄選択の結果だと考えられている。
The peacock's showy feathers are thought to be a result of sexual selection.
Compound of 雌雄 (shiyū, 'male and female') and 選択 (sentaku, 'selection'), a direct translation of the English term 'sexual selection'.