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The debate over deep-sea mining has focused almost entirely on environmental impacts: how marvelous communities of life, little-known and unlike any others on Earth, would be affected by the industrialized extraction of seabed minerals. Not much attention is paid to the economics. It’s taken for granted that, whatev...

Sperm don’t get much respect. They’re little more than a bare-bones package of DNA outfitted with a lashing tail. And they’re produced in such vast numbers that no single pollywog counts for very much. We all know about their co-starring role in reproduction. But as a 2023 Nature paper underscores, sperm represent s...