You've got to be tough to survive in the wild, which means animal fighters are, pound-for-pound, some of the toughest creatures Mother Nature has to offer.

To prove this point, Asylum's All Mashed Up created a fight card for the ages. In this clash of mammalian bruisers, it's going to take more than just muscle to become a champion. And if that wasn't enough to pique your interest, it's not just about who wins and loses -- it's quite possible that a defeated fighter may be dinner for his opponent.