Animals are no longer aggressive towards you so that you no longer have to participate in completely unfair fights with enemies that have no telegraphing. With mods like SkySA introducing attack commitment for humanoid npcs and DMCO, TUDM, TK Dodge introducing dodges combat in Skyrim is very fun now; however movesets for animals such as wolves, sabre cats, bears, etc. have not yet been created. This means that fights against those animals are very unfair because their attacks do not follow the same rules you have to. Their attacks have little or no commitment or telegraphing making the tactical combat modders have added into the game cease to function in a coherent manor.