I thought that too, but then I realized they'd have to cut off his legs every time they cloned him. That would be awful.
His arms are like that too - The shoulder joint is like a disc, but there's no opening for his arm. Maybe he's just a head and a body.
How did you make that video repeat? It's amaaazing. Never has my curiosity been so piqued about something so small.
If that were so then why would they go through the trouble of giving him the DNA of a prize winning Ox and a Sumo wrestler?