Didn't read the article because of the trigger fear, but I've always really wondered about animal alts. All of my alts have names of an animal and sometimes act like that animal, but they all talk and write as well. Some are more animal-like than others.

I think it stems from my process of thinking, where I always tend to associate a person with an animal, or something, but I'm not too sure. None of them have a name beyond the animal- it's just Hyena, or Polar, or Bat, etc.