1 Divisiaon of Animal Physiology, Box 144, Parramatta N.S.W., Australia
Medical research workers are hampered by the lack of opportunity to experiment on the animal (man) on which their professional interest is focussed. For many years now, and increasingly so of late, physiologists and pediatrics have been turning to the sheep to provide a readily available experimental subject of much the same birth weight as the human infant.
While most of these workers appear to realize that Homo sapiens and Ovis aries do have points of physiological dissimilarity, few could tell if their experimental material was normal and many could be trapped into errors of interpretation through unfamiliarity with ovine biology.