Re: MORE ON SAUROPOD FEEDING HIGH & LOW

[Jeffrey Martz <martz@holly.ColoState.EDU>]

> If sauropod brains were twice the size (or so) they actually are, would 
> that have made the amount of blood needed in the head prohibitively 
> great?  Are we sure this is WHY sauropod brains are small?

     Considering that all sauropods had heads a long way from the heart 
(diplodocids had a long way to pump that blood regardless of how high the 
head was being held, to say nothing of Brachiosaurus or Omeiosaurus), a 
small brain might require less oxygenated blood, possibly reducing 
required blood pressure. 

LN Jeff 0-
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