I believe that the north American/ European mammal the wolverine is the most badass mammal other than humans, clearly state the mammal you believe to be better the state your points. use any reliable source you want.
The wolverine is not the most badass mammal, they are like small, puny and cowardly wolves. If anything wolves aren't even the coolest mammals, they dominate entirely over the wolverine's. Other than being the nickname of a superhero (who is human) the wolverine is a useless animal that is anything but "badass." To re-correct your statement, the rat would be the most swagalishious beast on the planet. As seen in this video www.youtube.com/watch?v=UPXUG8q4jKU this rat walks with all swag and would be impossible to challenge. Also, the rat has also been the only animal to wipe out much of the worlds population (at some point). In the middle ages, with the help of flea's, the rat and the bubonic plague diminished Europe and Asia. The rat will always be the awesomest beast on earth, because of its dangerous historical performances and its swag that is carried out on video. It can accomplish anything.