Subfreezing Temperatures Not a Problem for This Antarctic Fish

September 23, 2014 10:54 PM

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Certain Antarctic fish species can create proteins that allow their bodies to remain unfrozen in the sub-freezing temperatures around Antarctica's Southern Ocean. As amazing as this process is inside the anatomy of these fish, there is a downside to it. Scientists studying these fish recently published their findings in the Proceedings of the National Academy of Sciences detailing how the 'anti-freeze' proteins that keep the fish from freezing don't melt, even when in warmer water.

Paul Cziko is a doctoral student at the University of Oregon and led the research examining the fishes' special proteins. "We discovered what appears to be an undesirable consequence of the evolution of antifreeze proteins in Antarctic notothenioid fishes," explained Cziko. "What we found is that th...

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