Bugs that buzz and flutter at other times of year are conspicuously absent during winter months.

Current data shows dormice are dramatically declining, but more accurate survey methods could yield different results.

Animals that hibernate live longer, so could hold clues on how to slow down ageing.

Animals that hibernate live longer, so could hold clues on how to slow down ageing.

Some of winter’s effects have been tied to cultural norms and practices, while others likely reflect our bodies’ innate biological responses to shorter days and colder weather.

Grizzly bears' circadian rhythm keeps on ticking, even when they are in hibernation, a new study shows.

Carbon dioxide may calm bumble bees down, but a new study shows it can also trigger a physiological responses involved with reproduction.

Animals have a few ways to survive cold temperatures, but it's not an either-or. "Each cold-survival strategy exists not as a binary but on a spectrum."

Months not eating or moving don’t result in muscle wasting and loss of function for animals that hibernate. New research found gut microbes help their hosts hold onto and use nitrogen to build proteins.

New research with flesh flies clarifies how the insects switch from dormancy to arousal. The findings raise some sci-fi possibilities.