Penguins on treadmills help reveal over-fishing 2

	Duration: 00:32 minutes Upload Time: 07-05-10 05:44:31 User: newscientistvideo :::: Favorites :::: Top Videos of Day
Description: For more information: http://environment.newscientist.com/channel/earth/dn11522 Lewis Halsey and his colleagues have carried out previous experiments where they got king penguins to exercise on a treadmill, so they could determine how much energy the penguins need to expend in order to maintain different heart rates. Watch this video of a king penguin on a treadmill