So, because I think cursed lore is something this fandom needs more of, let's talk about Fundy. Specifically, let's talk about the fact that he was involved in a drug van scheme before being born. "That can't be right," you say, and I hear you. In most cases that would be logically impossible. Fortunately, however, this is the DSMP, so we can go deeper. It is possible to join a drug van scheme before being born... if you're a marsupial. "But Fundy is half-Wilbur and half-salmon," you say, and you're right. But as Fundy was born and not hatched, and given that pregnancy on the DSMP isn't restricted by such things as sex, gender, or logic, we can safely assume that Wilbur was the one who carried Fundy. And it's entirely possible Wilbur has a marsupial-like pouch, because his mother is a fridge, notably a type of container.
Thank you for your time. I hope this clears up and/or increases confusion.