NA (1 mg kg–1, s.c.) administered at 0 min. A, change in core body temperature of wild‐type (black, n = 11) and UCP3KO (blue, n = 12) mice. B, change in core body temperature of wild‐type and UCP1KO (red, n = 8) mice. C, change in core body temperature of UCP1KO and UCPDK (orange, n = 5) mice. D, change in core body temperature of all genotypes tested. Dotted lines represent ± SEM. Black bars represent significance between groups with Welsh's two‐tailed t test, P ≤ 0.05. [Colour figure can be viewed at wileyonlinelibrary.com]