One of my original species started happening in felt.
I don't have a reference sheet worked out yet, but these guys have been wiggling around in my head since like... 2011, jeez.
Boroviaks are basically boar/slug dragonish creatures with bits of wilderness on their mantles. The little ones have small patches of ground, and the big ones can have entire islands and hills and stuff.
The babies are missing some of the features of the adults - instead of horns/antlers, they have little nubs, and they don't have little slug feelers on their faces yet either.
The adults can shapeshift to some degree to stand and walk upright.
They're based on Eastern European and Finnish forest spirit mythology.