A little clarification post before too many entries are posted
The winning entry is almost guaranteed to get at least a SLIGHT redesign to fit the canon. In my canon, all of these will have evolved naturally - or at least partially -, so I wouldn’t want things to feel out of place compared to the ones I designed. Feel free to submit whatever you want, as I will still keep the majority of the concept the same, likely just slight visual changes will be made.
Happy brainstorming! ^ ^
Nuh uh. What if the little shit is from outer space?
then it crash landed, cause aliens are real and you can’t tell me otherwise. (no, I do not believe we have encountered aliens, it is just statistically impossible for us to be the only ones)
That’s not the issue. How are going to apply evolution to something from outer space? Or a different dimension that is located under the swamp?
Oh ok, what I mean is that it has to have evolved at least semi-naturally wherever it’s from. So like an alien evolving on its home planet then crashing, or a portal opening to a different dimension and something that evolved there coming through. So it just has to ha e evolved naturally in its home environment, wherever that may be.
How are you going to determine what its environment were like?
I will work that out once I get there because if I try to now I’ll overthink it and psyche my self out 
Unrelated to the contest but belated to the swamp… imagine mossy cannibal Fluffy like this living with a small family of cannibals they know the swamp like the back of their hoof
Tho if i named that fella id name him Bubba. His foals would stack skulls instead of blocks and play “tag” with num-I mean foal friends and Mare Brandie feeds visitor fluffs the Bestest Milkies in the swamp… the secret is special skettis wink wink