Although we have learned much about how the brain fuels its functions over the last
decades, there remains much still to discover in an organ that is so complex. This article lays …

Shifts in the timing of cyclic seasonal life-history events are among the most commonly
reported responses to climate change, with differences in response rates among interacting …

The regulation of seasonality has been an area of interest for decades, yet global climate
change has created extra urgency in the quest to understand how sensory circuits and …

Torpor or heterothermy is an energy‐saving mechanism used by endotherms to overcome
harsh environmental conditions. During winter, the garden dormouse (Eliomys quercinus) …

The polar regions receive less solar energy than anywhere else on Earth, with the greatest
year-round variation in daily light exposure; this produces highly seasonal environments …

Hibernation is an extreme state of seasonal energy conservation, reducing metabolic rate to
as little as 1% of the active state. During the hibernation season, many species of …

Many animals adjust the timing of seasonal events, such as reproduction, molt, migration,
and hibernation, in response to interannual variation and directional climate-driven changes …

Aphagic hibernators such as the golden-mantled ground squirrel (GMGS;
Callospermophilus lateralis) can fast for months and exhibit profound seasonal fluctuations …

We asked if environmental temperature alters thyroid hormone metabolism within the
hypothalamus, thereby providing a neuroendocrine mechanism by which temperature could …

To maximize energy savings, entry into torpor should involve a fast reduction of metabolic
rate and body temperature (T b); that is, animals should thermoconform. However, animals …