Editing Evolutionarily stable strategy (section)

== Stochastic ESS ==
In the classic definition of an ESS, no mutant strategy can invade. In finite populations, any mutant could in principle invade, albeit at low probability, implying that no ESS can exist. In an infinite population, an ESS can instead be defined as a strategy which, should it become invaded by a new mutant strategy with probability p, would be able to counterinvade from a single starting individual with probability >p, as illustrated by the evolution of [[Bet-hedging (biology)|bet-hedging]].<ref>{{cite journal |last=King |first=Oliver D. |author2=Masel, Joanna |author2-link=Joanna Masel |title=The evolution of bet-hedging adaptations to rare scenarios |journal=Theoretical Population Biology|date=1 December 2007 |volume=72 |issue=4 |pages=560–575 |doi=10.1016/j.tpb.2007.08.006 |pmid=17915273 |pmc=2118055|bibcode=2007TPBio..72..560K }}</ref>