Who is Yarnaby in Poppy Playtime: Chapter 4?Experiment 1166, explained

This Bigger Bodies experiment should have a cuddly nature because its cuteness tricks you into a false sense of security. It isn’t until it opens its face, revealing a mouth within a mouth, both bloody with chipped teeth, that you realize Yarnaby is just another monster you’ll have to run from in Poppy Playtime: Chapter 4.

If you were wondering who Yarnaby is in Poppy Playtime: Chapter 4, here is everything we know about this Bigger Bodies project.