Siberian Dwarf Hamster in his Wheel: To the Left or to the Right? / cc Eng + Dutch

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The Djungarian hamster (Phodopus sungorus), or Siberian dwarf hamster loves running in his hamster wheel. Does he prefer to run at the left side (counter clock wise) or at the right side (clock wise) of the wheel?
My playlist - Animals I happen to encounter:
Music at the end:
Ludwig van Beethoven, Violin Concerto in D, Op. 61 - III. Rondo: Allegro by US Marine Chambre Orchestra – musopen.org