Yes, you could define “sexual selection” that generarly. However, I don’t think a terms that refers to everything is particularly useful.
And yes, in this sense Mr. Dumb taking a knife to the heart in a pub and his girlfriend hooking up with someone else is an example of this intra-species competition...
Yes, but I wouldn’t call that sexual selection unless the fight was specifically over the girlfriend.
Yes, you could define “sexual selection” that generarly. However, I don’t think a terms that refers to everything is particularly useful.
Yes, but I wouldn’t call that sexual selection unless the fight was specifically over the girlfriend.