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When a maniraptoran moved its arm, did the two arms move in sync with one
another, each a mirror image of the other? (since it likely wasn't in sync
with the legs, as quadrapeds are)
I got the idea for this question by thinking of how birds fly by flapping
their wings largely in sync with one anther -- opposed to how a primate
can hang by one arm, while eating with the other.
...the question can also apply to non-maniraptoran thecodont-descended
bipeds which modern science suggests were endothermic.
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