A cute abomination
The words “cute” and “abomination” don’t really go together, but in this case, there’s no other way to explain it. The OP said this animal looks like someone glued together a bunch of parts from different animals, and we gotta say, we agree with them. So, weird features aside, what is this thing?
Nobody provided a name for this creature, but they did say that it was a rodent. The fact that the OP came from Argentina made everyone sure that this was a rodent that people keep as pets. These animals require a bit of land to hop around and don’t very much appreciate being locked in cages all day.