Koala Physiology

	Unlike bears and seals, koalas don't rely on a layer of fat below the skin as a form of insulation.
	Blood flow through extermities in cold weather, as in humans, can be reduced, resulting in the      conservation of heat.
	Shivering has also been observed in cold climate of creating heat through rapid contractions of certain muscles. This seems to occur outdoor temperatures drop below 10 degrees Centigrade.
	When temperatures get to 25-30 degrees, koalas usually  use evaporative cooling in their airways to regulate body temperature by increasing respiration rates. They can reduce water loss by   decreasing the amount of water in their urine.

   
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