性せい淘とう汰た

noun

sexual selection

A biological term referring to the process by which certain traits become more common in a population due to mate choice or competition for mates.

• クジャクの派は手でな羽はねは性せい淘とう汰たの結けっ果かだと考かんがえられている。

  The peacock's showy feathers are thought to be a result of sexual selection.