Tuesday, 27 January 2015

Alaskan Wood Frogs

Each September the Alaskan wood frogs freeze. Two-thirds of their body water turns to ice. If you picked them up, they would not move. If you bent one of their legs, it would break. Their hearts stop beating, their blood no longer flows and their glucose levels sky rocket. But then during the spring, they thaw out and return to normal.

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