So, assuming both the mountain lion and the wolverine are very hungry and thus fighting for survival. The wolverine will be the more aggressive ... So in most conflicts between both animals, the mountain lion is most likely to withdraw from the conflict, thus the wolverine will win. read more
If its in the open the cougar would win but if the wolverine had a corner to back in or a hole to jump in and out of it might go the wolverines way but it wouldn't be able to kill the cougar. Source(s): cougar vs bear. read more
If a wolverine could scare away a bear it could scare off thecougar and avoid a fight. read more