This is interesting, but there is no explanation offered for how attraction to reproductively irrelevant secondary sexual characteristics could ever come to be, let alone increase over evolutionary time. It seems Darwin may have hit on a real mechanism, but completely failed to explain the genesis of this mechanism. Peace, DP
This helped me out so much! This is great.
Why would they discuss that, when as you say, they are irrelevant to sexual selection.
This is interesting, but there is no explanation offered for how attraction to reproductively irrelevant secondary sexual characteristics could ever come to be, let alone increase over evolutionary time. It seems Darwin may have hit on a real mechanism, but completely failed to explain the genesis of this mechanism. Peace, DP