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Keeping warm: Coordinated movements in a penguin huddle

Harlequinmania

By Harlequinmania,
in General Reefkeeping_

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Harlequinmania

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To survive temperatures below -50 ° C and gale-force winds above 180 km/h during the Antarctic winter, Emperor penguins form tightly packed huddles and -- as has recently been discovered -- the penguins actually coordinate their movements to give all members of the huddle a chance to warm up.

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1000 Gallon Tank in the Hole 

http://www.sgreefclub.com/forum/topic/120957-1000-gallon-3d-hole-in-the-wall/ 

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