What does a wolf betta fish alligator vulture have in common?

This is a bit of a trick question! There's no such thing as a "wolf betta fish" or an "alligator vulture."

Here's why:

* Wolf betta fish: Betta fish are a type of tropical fish, and there's no recognized variety called a "wolf betta." It's likely a made-up name.

* Alligator vulture: While there are vultures, like the turkey vulture, they aren't related to alligators. The term "alligator vulture" doesn't exist in a scientific context.

So, what's the commonality? There's no real commonality to find. The terms are either made up or misinterpretations of real animal names.