Table 1.

Animal group characteristics.

	hAGSa	eAGSa	Rats	hAGSb	eAGSb	laAGSbc
Sex	4F, 2M	3F, 3M	4M	2F, 3M	3F, 2M	2F, 3M
Age	2A, 4J	1A, 5J	13 mo	4A, 1J	5A	3A, 2J
Mass (g)	591	658	601	677	888	639
Initial body temperature (°C)	NA	NA	NA	NA	NA	2.2
Body temperature at time of tissue collection (°C)	3.2	38	38	2.8	36	36
Uninterrupted days in cold room	234	239	NA	132	132	163
Days torpid	157	169d	NA	93	NAe	131
Days euthermic after arousal	NA	78	NA	NA	NA	<1
Days torpid when tissue was collected	6	NA	NA	9	NA	5
Days torpid prior to last arousal	9	NA	NA	13	NA	4

hAGS (hibernating AGS), eAGS (euthermic AGS), laAGS (late arousal AGS), Female (F), male (M), adult (A), juvenile (J).

^aUsed to study effect of hibernation.

^bUsed to study effect of arousal following hibernation.

^claAGS were treated with saline prior to arousal.

^d3 of 5 AGS that hibernated. 2 of 5 AGS did not hibernate prior to tissue collection.

^eEuthanized before onset of hibernation.