<p>Being scary does not a Villain make. Being antagonistic is not always the same as being a villain.
</p><p>Animals which do what they *normally do*, both in Real Life and their fictional narrative—such as the <i>Jurassic Park's</i> Big One—is not enough to qualify as villains.
</p><p>My dogs guarding my house will bite strangers which trespass. Are they villains? Let's say for a moment *I'M* a villain and I have guard dogs… would *they* be villains simply because I am?
</p><p>Now, we don't do Real Life Villains, but
*if* we did, a prime example of a villainous dog
MIGHT be the one which attacked that toddler that
Tara the Hero Cat chased off.
</p><p>One of the major key elements of being a Villain is *Intent*. There <i>must</i> be intent. It <i>must</i> be Malicious. The character <i>must</i> be Wicked Doing Evil. "Normal" animals do not have such intent UNLESS the narrative shows they do. And that is generally Anthropomorphized animals. Not anthro'd? Probably not a villain.
</p><p>If you have not done so by now, read the
Rules. Especially Section 6.
</p>