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“Modern science has since discovered the positive effect of an infusion of salt on the nervous system, and for lactating mammals, but a tiny male moth with a huge appetite for salt also seems to back the notions of the ancient Greeks--- that salt is a key ingredient for successful sex. The male Gluphisia moth spends most of his short life accumulating enough salt to give his mate a nuptial gift of sodium. This act is achieved by "puddling," or sucking from pools of standing water or moist ground for several hours at a time and squirting out the liquid in strong jets. The process is nothing if not a test of endurance, with the most virile moths squirting out 4,325 jets, or 600 times their bodyweight. The moth only takes in sodium, expelling other nutrients like potassium. The act raises the moth's sodium levels to eight times that of the nonpuddling Gluphisia. Ultimately, the former will give half of this sodium to a mate in a reproductive act by incorporating the sodium into spermatophore, a present of nutrients, protein, and sperm that supplies the female with enough sodium to pass on to her larvae.” — Mark Bittman