Sexual selection Meaning, Definition & Usage

(Biol.), the selective preference of one sex for certain characteristics in the other, such as bright colors, musical notes, etc.; also, the selection which results from certain individuals of one sex having more opportunities of pairing with the other sex, on account of greater activity, strength, courage, etc.; applied likewise to that kind of evolution which results from such sexual preferences. Darwin.
In these cases, therefore, natural selection seems to have acted independently of sexual selection. A. R. Wallace.