Shripad Tuljapurkar is Professor of Biology and the Morrison Professor of Population Studies at Stanford University. His research areas include stochastic dynamics of human and natural populations; prehistoric societies; and probability forecasts including sex ratios, mortality, aging and fiscal balance. Tuljapurkar is a member of the Center for the Demography and Economics of Aging at the University of California, Berkeley. He has led a panel on aging for the International Union for the Scientific Study of Population, served on the Technical Advisory Panel to the US Social Security Administration, and been president of the Evolutionary Demography Society. He received the 1996 Mindel Sheps Award from the Population Association of America, a John Simon Guggenheim Fellowship in 1998, and the Weldon Memorial Prize from Oxford University in 2017.