Sodium: a male moth's gift to its offspring.

@article{Smedley1996SodiumAM,
  title={Sodium: a male moth's gift to its offspring.},
  author={Scott R. Smedley and Thomas Eisner},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1996},
  volume={93 2},
  pages={
          809-13
        }
}
Males of the moth Gluphisia septentrionis acquire sodium by drinking from mud puddles. Analyses of male and female bodies indicate that such "puddling" behavior enables the male to provide his mate with a nuptial gift of sodium, presumably via the spermatophore. This gift (about 10 microg), amounting to more than half of a puddler male's total body sodium, is in large measure apportioned by the female to her eggs. Puddler-sired eggs contain 2 to 4 times more sodium than those control-sired… CONTINUE READING

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