Thermoregulation in monotremes: riddles in a mosaic

  title={Thermoregulation in monotremes: riddles in a mosaic},
  author={Peter Brice},
The three extant genera of the Monotremata have evolved, probably from a pre-Cretaceous Gondwanan origin, independently of the Theria to display a variety of ancestral and derived features. A comparison of their thermoregulation reveals a diversity of physiology that might represent both plesiomorphic and apomorphic elements within this mosaic. In the tachyglossids, the echidnas Tachyglossus and Zaglossus, body temperature is often labile, rising as a result of activity and allowed to decline… CONTINUE READING