Which risk increases when a hibernating arctic ground squirrel's subcutaneous fat temperature fluctuates above -2°C?

💡 Explanation

When subcutaneous fat temperature rises above -2°C, norepinephrine release can trigger arousal because thermoreceptors signal the shift toward metabolically expensive normothermia. Therefore sudden arousal results, rather than embolism, denaturation or hypoglycemia which are suppressed by cryoprotective inactivity.

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