In many species, only males have impressive ornaments and show-off behavior, but sexual selection is also thought to be able to act on females as well in species that are at least partially monogamous.
Only males have impressive ornaments. This is in many species. Show-off behavior, but sexual selection is also thought to be able to act on females as well in species. This was in many species. These females as well in species are at least partially monogamous.