Everything an animal does isn't a selective advantage, sometimes it's just not a disadvantage.
Fine, in that case, why is it a disadvantage for the males?
Now please don't tell me "it doesn't have to be a disadvantage for males, it might just be an advantage for females" !
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Fine, in that case, why is it a disadvantage for the males?
Now please don't tell me "it doesn't have to be a disadvantage for males, it might just be an advantage for females" !