I’m back Here’s a look at the world’s top 20 most aggressive on animals. This isn’t a deadliest list, have a look at my top 10 deadliest animals for that. Also, have a look at all of my other animal threads if you wish. Humans are excluded from this list. Ranking animal aggression is highly subjective, this list is in no particular order. These are just the most aggressive animals on earth, but you can make a case for say number 13 (snake) being at number 5 because of it being so subjective and lots of different species of snakes. 20. Killer Bee The most aggressive species, killer bees are characterized by greater defenses in established hives than European bees. They are more likely to attack if provoked and/or considered a perceived threat than anything else and attack relentlessly in larger numbers. 19. Pit Bull Pit bulls are very friendly breeds but compared to other breeds, naturally, they are quite aggressive towards other animals. The young pit bull should be socialized early to as many types of different animals as possible. 18. Cassowary They are vicious and have attacked, even killed humans with their sharp, spike-like toenails. Very aggressive animals, especially when chicks are present. Right before an attack, they arch their body upwards, fluffing the rump feathers, bending the neck with the bill pointing downwards while uttering a deep booming sound with shaking the body. 17. Tasmanian Devil They are not aggressive until it comes to food. They are protective over their meals. They may fight and kill another devil that comes in-between him/her and its food. The males fight for the females resulting in many coming off looking like they’ve been hit by a car. 16. Wolverine These are ferocious animals considering their size. Dominating larger animals during an aggressive encounter at a food source, seen driving away a bear or a wolf from an animal carcass. With combative nature, they are very aggressive when hunting or trying to face down another animal for food. 15. Honey Badger They are fearless and tough animals. They’re known to savagely attack their enemies when escaping is virtually impossible. They’re tireless in combat, can wear out larger animals in physical confrontations. With few natural predators and ferocious defensive abilities, they’re declared as one of the most, if not the most fearless animals.