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Re:Blood flow in Sauropods



     At 12:05 AM 9/14/95, Derek Tearne wrote:
     >The reason which I have heard cited is that mammals are restricted to 
     >7 vertebra in the neck and no mammal has more (although I knew a 
     >woman once who had eight... ).
     >
     >This pretty much restricts the length and flexibility of mammalian 
     necks. >
     >Birds, reptiles and dinoraus are not restricted in this way and >can 
     therefore evolve much longer necks.
     
     Ok, I saw this once in a Ripley's Believe It or Not.....a giraffe has 
     fewer vertebrae in it's neck than a sparrow.
     
     Fine.  Which one has a longer neck?
     
     -Betty