Epstein Secrets

y, Cambridge, MA 02138; 'Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138; and °Department of Mathematics, Harvard University, Cambridge, MA 02138 Edited by Brian Skyrms, University of California, Irvine, CA, and approved October 16, 2018 (received for review June 19, 2018)

r's strategy is given by a pair (a, a The first component I. Alexander R (1987) The &obey of Moral sntems (Aldine de Cayter, New Toth). 2. Rand DG, Nowak MA (2012) Human cooperation. Trends Cogn Ski 117:413-425. 3. Malls AP, Semmann D (2010) How Is human cooperation different? PAWS Trans A Soc 8 365:266

T Austria, KlostemeubLeg, Austria, 2 Program for Evolutionary Dynamics, Department of Organismic and Evolutionary Biology, Department of Mathematics, Harvard University, Cambridge, Massachusetts, United States of America Abstract A fundamental question in biology is the following: what is the time scale that is nee

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