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tiny theropod on a tree trunk question



Does it make any difference to its progeny (subsequent lineage) if a
tiny theropod were to choose to grapple a tree trunk in the head up or
head down position? I was wondering this in relation to the posterior
rotation of the carpus, which would seem to be accented in the head down
position and not so much in the head up traditional grappling
configuration.

One of the minor/major differences in bats and colugos (or colugoes in a
nod to Dan Quayle) is a preference for one or the other (and remember
we're talking about tree trunks, not horizontal branches here) with a
posterior/lateral rotation of the resting carpus in one and not the
other.

David Peters
St. Louis