Saturday, 17 July 2010

Reindeer

Reindeer body clock switched off (BBC News)
* "Reindeer have no internal body clock, according to scientists."
* "Researchers found that the animals are missing a "circadian clock" that influences processes including the sleep-wake cycle and metabolism."
* "This enables them to better cope with the extreme Arctic seasons of polar day, when the sun stays up all day, and polar night, when it does not rise."

Thursday, 15 July 2010