Wednesday, January 12, 2011


The survival rate of King penguins with metal bands on their flippers was 44 percent lower than those without bands and banded birds produced far fewer chicks, according to new research published Wednesday in the journal Nature.
The theory is that the metal bands — either aluminum or stainless steel — increase drag on the penguins when they swim, making them work harder, the study's authors said.
Author Yvon Le Maho of the University of Strasbourg in France, said the banded penguins looked haggard, appearing older than their actual age.

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