Clock Zoo
clock | June 26, 2006
The persistence of circadian rhythmicity during long bouts of hibernation in mammals has been a somewhat controversial topic in the literature. While some studies suggest that circadian clock is active during hibernation, other studies dispute this. Apparently, the truth is somewhere in-between - it differs between species:
Not all hibernating animals retain apparent circadian rhythmicity during the hibernation season. Whereas some species, such as bats and golden-mantled ground squirrels, maintain circadian rhythmicity in Tb throughout the hibernation season when held in constant…