Wedel says that an avian system would have allowed it to dump more heat. Some scientists state that the heart would have had trouble sustaining sufficient blood pressure to oxygenate the brain. Others suggest that the near-horizontal posture of the head and neck would have eliminated the problem of supplying blood to the brain because it would not have been elevated.
Wedel claims an avian system would have enabled better heat removal, while some scientists contend the heart couldn't sustain sufficient blood pressure for oxygenating the brain. Others suggest that the head and neck's near-horizontal position would eliminate the problem of supplying blood to the brain.