Squirrels Survive When Humans Would Die
<p>Ahibernating ground squirrel wouldn’t look like much, even if you could spot it. But curled into furry balls from October to April, these pint-sized mammals have genetic adaptations that could be applied to next-generation therapeutics for humans.</p>
<p>When ground squirrels hibernate, which they do for about six months each year, their heart rates drop, and their only brain activity is that required for essential function — essentially, they’re brain dead. But squirrels can survive periods of low oxygenation, or hypoxia, during massive, biweekly shifts in their body temperature. Those same conditions in a person would cause heart attacks, strokes, and even death. Yet, ground squirrels recover from these damaging episodes dozens of times each winter during hibernation.</p>
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