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Re: Sauropod Energetics (Peristaltic pump)
From: "Richard W. Travsky" <firstname.lastname@example.org>
I was responding to Sim Koning's comment about "a constant oxygen supply"
for the sauropd's brain. If oxygen concentration were higher, the blood
would be more oxygenated and it could better "ride out" a blip in the
I don't think a higher oxygen concentration would help, because basically
the blood would drain out of the skull if the blood pressure wasn't high
enough to keep it up there in the first place. The brain needs a contant
oxygen supply to work. If you have someone put you in a choke hold, you will
notice that it only takes a few seconds to pass out. As Greg and I have both
said, fainting while in an upright position would result in a pretty nasty
fall. I really don't think it's realistic say evolution could not figure out
a solution to the problem.