Koinophilia Animal sexual behaviour

koinophilia love of normal or phenotypically common (from greek, koinos, meaning usual or common ). term introduced scientific literature in 1990, , refers tendency of animals seeking mate prefer mate not have unusual, peculiar or deviant features. similarly, animals preferentially choose mates low fluctuating asymmetry.

however, animal sexual ornaments can evolve through runaway selection, driven (usually female) selection non-standard traits.