I agree, the puzzle is why the “females” respond to invasion by “males” by making it easier for the males, rather than by making it more difficult. Too bad the article doesn’t even consider the possibility that they might do either.
I agree, the puzzle is why the “females” respond to invasion by “males” by making it easier for the males, rather than by making it more difficult. Too bad the article doesn’t even consider the possibility that they might do either.