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Re: swimming dinosaurs
In article <firstname.lastname@example.org>, Rob
Meyerson <Robert.J.Meyerson@uwrf.edu> wrote
>Bonnie Blackwell writes,
>>2. would sauropods be able to swim by keeping their tails and necks
>>near the water surface (and hence the lungs near the surface) with just
>>their heads marginally above water)? or would they have too much
>>mass below the water surface pulling them downward to be compensated by
>>inflated lungs near/at the surface? if the adults could not swim thus,
>>would the juveniles have been able to do so?
>I'm going to go out on a limb for this one (and I think I hear it snapping).
>The shape of
>the lungs tends to be outlined by the rib cage (since the heart and lungs are
>vulnerable, and most important, organs in the torso). Since sauropod rib
>pretty massive, then the lungs should have been just as massive. IMO, a full
>air would provide enough bouyancy to allow even the biggest of sauropods to
>therefore swim, rather well. Check out comparative anatomy textbooks
>dissection guides) for better details
Sauropods, specially the large ones, must have had a large stomach and long
intestines. Gas in these organs would also have helped in flotation. Pneumatic
bones would also have reduced the overall density.
Gautam Majumdar email@example.com