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

New findings suggest that "entering into a hibernation-like state is not a relatively new type of adaptation. It is an ancient one."

Neuroscientists have discovered neurons that control hibernation-like behavior in mice, a finding that could translate into applications in humans, such as preventing brain injury during a stroke.

A new hypothesis may clarify how European cave bears went extinct. The bears may not have been able to change their diets because of their sinuses.