[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Sauropod Energetics (Peristaltic pump)

On Thu, 26 Jan 2006, Sim Koning wrote:
Would some sauropods need to maintain blood flow in order to raise their
heads long enough to take a mouthful? Surely if a diplodocid (or other
species that maintained horizontal necks most of the time) was able to
seal off the blood supply out of the neck for a few seconds to prevent
blood from draining away from the brain, then a few moments of no blood
flow to that tiny brain wouldn't be so critical?

It would mean they couldn't raise their heads for any length of time
(barring other unknown blood flow mechanisms), but it wouldn't make
quick forays into higher elevations entirely impossible.

That's Bakker's hypothesis, but I don't know how long even a small brain could function without a constant oxygen supply. It would mean that these

Would higher oxygen levels compensate?