Antarctic Fish Survive Icy Cold Waters By Developing ‘Antifreeze’ Proteins

September 24, 2014 11:42 AM

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Antarctic Fish Survive Icy Cold Waters By Developing ‘Antifreeze’ Proteins

Fish in Antarctica develop special “antifreeze” proteins that help them stay alive in the icy Southern Ocean, according to a new study. The life-saving proteins, however, come with a side effect as they can prevent ice crystals inside the fish from melting even in warm summer waters.

The researchers discovered the antifreeze proteins more than 40 years ago while studying how Antarctic fish survive in conditions that would freeze up most other aquatic beings. According to the researchers, these proteins help the fish avoid freezing by binding ice crystals that enter their bodies ...

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