Digging the Underground Life

A rare peek inside the subterranean home of the naked mole-rat

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Digging the Underground Life
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LOGAN PARSONS

Given the strictly subterranean existence of the naked mole-rat (Heterocephalus glaber), it is not surprising that naked mole-rats have evolved a set of characteristics highly suited to life in dark, dank burrows. Here are a few: Blood: Naked mole-rats have a greater number of red blood cells per unit volume, and the hemoglobin in the red blood cells has a higher affinity for oxygen than that of most other mammals, so their blood is better at capturing what little oxygen there is. Ears: No external ears, only openings in the sides of the head Eyes: Very small eyes, which the animals often don’t bother to open, that are only able to distinguish light from dark Metabolism: Their mass-specific metabolic rate is about 70 percent that ...

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