Wolverine

The largest land-dwelling member of the Mustelidae family is the wolverine, also known as the glutton, carcajou, or quick hatch. It is a strong carnivore that lives alone. The wolverine has a reputation for ferocity and strength that are out of proportion to its size, and it has been shown to be capable of taking down prey that is several times its own size. You might be asking if the wolverine could kill the badger, and if the badger even has the tools to kill a wolverine in this situation.

The arsenal of a wolverine is fearsome, but it is not superior to that of a lion, a leopard, or a hyena. The Wolverine has strong jaws and teeth, but the badger's hide would be extremely difficult for it to penetrate. Hours would pass, and the wolverine would eventually run out of energy to fight the battling badger, which would not let up until it was dead.

Furthermore, although being smaller than wolverine fangs, badger teeth may easily pierce the latter's hide. The wolverine, however, could not be killed by the badger just by biting it. One of the predators of badgers that eat badgers is the wolverine, there's a danger the wolverine will bite the badger's throat and suffocate it. However, given the badger's loose, thick hide, this is quite unlikely. The wolverine would either bleed to death from the badger ripping off its genitalia, or both animals would die from lengthy mutual mutilation.