This is not a typo or an error. It’s not some AI image that’s going viral. There are really rabbits with what look like tentacles growing out of them.

Let’s explain the whole thing. Per The Coloradoan: “Cottontail rabbits with horn-like growths on their heads have appeared in Fort Collins in recent weeks, causing concern of the health risk to the rabbits and humans.”

The disease is known as rabbit papillomas, which is a virus of the skin that causes the growths. It’s not a problem for pets or humans, but it’s a good idea not to touch the animals. That’s per officials at Colorado Parks and Wildlife.

This is what it looks like:

So there you have it. If you see those photos going extremely viral, you know what it comes from.

Is that why they’re calling the rabbits with tentacles ‘Frankenstein rabbits’?

I’ve seen that term thrown around and that appears to be the case.

This article originally appeared on For The Win: Rabbits with tentacles, explained as Frankenstein rabbits go viral