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The Hibernator’s Guide to the Galaxy
Mike Letterman
- Nov 24, 2022, 12:32 PM
The most extreme squirrel on the planet can spend up to eight months a year in a torpid state.
Photograph: Mary Webb
For up to eight months of the year, the ground squirrel is just a resting place. The internal temperature of the animal is as cold as ice during that time. Its brain waves are so weak that they're almost impossible to detect. The squirrel isn't dead. It can return to 98.6 degrees in a few hours.

The Hibernator’s Guide to the Galaxy
Kelly Drew was working in a lab in 1992 near the northern pole of a planet that was half a million miles per hour. She was distracted when Brian Barnes, a professor at the University of Alaska Fairbanks, came by her bench. He asked Drew to hold out her hands so that he could surprise her. She felt a