I didn't get the model. I wont be able to animate it myself, I'm just too busy atm.
There were a few people animating a while back, but it seems that most of them are no longer able to mod, or have stopped modding. So... no there aren't any groups.
People who can animate creatures atm are me and Archimaestro Anteres AFAIK. I think Axel specialises in animating NPCs.
If you were here a couple of weeks ago I would have also suggested Muspila, who was more experienced than me (he's made 2 creatures from scratch, I've only made 1), but unfortunately he decided he's going quit modding.
Anteres, Candlemaster and Muspila have made animation tutorials for Blender, Muspila has made one specifically for creatures, and Anteres and Candlemaster for NPCs.
You could have a look at them and try animating it yourself, if you have time.