Stanford University


Human fertility has been declining at an unbelievable rate in many rich countries, leading to gloomy predictions about labor and taxes. A 2009 paper by Myrskylä, Kohler and Billari provides evidence that fertility may at last be coming up off its nosedive. For perspective and summary, read our News and Views piece published in Nature.

The latest stories have been about our work on “The Dynamics of Phenotypic Change and the Shrinking Sheep of St. Kilda,” Ozgul, A., S. Tuljapurkar, T. G. Benton, J. M. Pemberton, T. H.Clutton-Brock and T. Coulson, published in Science (325, 464-467, 2009).
Read the New York Times story and also a story in the Stanford Report.

There was tremendous news interest in our 2007 work on how mating patterns affect the evolution of senescence in humans. Specifically we found in many human populations that males over 60 years old have substantial reproductive success and hence fitness. The paper was “Why Men Matter: Mating Patterns Drive Evolution of Human Lifespan,” Tuljapurkar, S., Puleston, C.O., Gurven, M.D.  2007 . PLoS ONE 2(8): e785. doi:10.1371.
Read the tabloid story that appeared on Yahoo and the thoughtful story in the Economist.