This is based on a message I left for a user as an example of how people try to force characters to fit a description.
In the Nickelodeon movie The Rugrats Movie, there is Scar Snout that appears a few times and causes problems for various characters in its search trying to kill those characters for food because he always hungry and trying to kill for food. I have seen other people try to classify Scar Snout as a normal predatory animal or acting according to normal animal nature during the past two years, but it's neither. It's just a big bad wolf. It is an true villain because it's only nemesis of the Rugrats, Spike and the monkeys, but it is nothing more.
Here's why Scar Snout the wolf is just a true villain and a very main one at that:
To be a predatory animal, you have to not only be a antagonistic animal, but you have to go out of your way to be a normal predator, such as really enjoying to hunt the heroes when were hungry. Does Scar Snout do anything predatory animal-like? No. It is looking and killing for food and to it, rugrats and monkeys are food. The best we can say about Scar Snout is "it is normal only that Scar Snout tries to eat others when he's hungry", but in no way does it go out of its way to eat monkeys and rugrats when he's hungry and follows his instincts.
To be a acting according to normal animal nature, you have acting according like a normal animal in a deliberate way. Likewise, to be an antagonistic, your ways to be rival or dislike some others. In other situations, they might even put you in the normal predator or acting according animal. Does Scar Snout do anything acting according animal-like, even if it might look like an antagonistic? No. It's a big bad wolf looking to kill others for food.
So why do people try to say this Scar Snout is only a predatory animal, antagonistic or acting according animal nature? It's because he supposed to be a true villain which is the enemies with Spike, rugrats, and the monkeys. He is a villainy predator who tries to kill for food, and also begins to fight with Spike when he tries to save the babies. Scar Snout is also more violence when his meals are escaping from them and tries to scare the monkeys with his "wool sound". Scar Snout doesn't think, "I'm going to be acted like a normal predator." Scar Snout thinks, "There's some food. I'm going to kill them for my food."
That's it. Its his villainy actions that haven't changed and have no reason to change back to be a normal predator of the story. It's not something deliberate Scar Snout does because he can't help himself anymore which is only a true villain and anthropomorphic predator. It's just enemies that some predators are villains. Don't ascribe behaviors and motives to a character that aren't shown in the movie.