Surely the pressure would be for adults to find babies cute, whatever they look like. In fact, isn’t that what “cute” means, evolutionarily speaking, just as “attractive” means “what good breeding material looks like”?
Of course, as in the sexual selection case, you can then get feedback, with babies evolving to look even more like they look.
There may also be evolutionary pressure for babies to evolve to be cute.
There’s certainly evolutionary pressure for males to be sexy. Some species have pretty bizarre looking males.
Surely the pressure would be for adults to find babies cute, whatever they look like. In fact, isn’t that what “cute” means, evolutionarily speaking, just as “attractive” means “what good breeding material looks like”?
Of course, as in the sexual selection case, you can then get feedback, with babies evolving to look even more like they look.