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Fig. 4. (A) Tsubcut and Tglobe (means
± s.d.) from 2 animals in July over 24 h with means derived from 12
temperatures per hour, showing coincident changes during the day (pink) and
the separation of temperatures at night (black). (B) In the mornings and
evenings the difference between carotid and subcutaneous temperatures
increases suggesting vasoconstriction, but narrows at midday suggesting
vasodilation.