Evolution Stability (tsh68)
Article: https://www.sciencedaily.com/releases/2016/11/161124081553.htm
Evolutionarily stable strategies include the two-player games. The strategy that is stable is implied to be the strategy that will continue to persist. If a strategy is not stable, then the strategy will not be effective and thus will be eliminated. In evolutionary biology, the stable strategy between two different players, or organisms, would represent the trait of the organism that is more desirable, i.e. the trait that would give the organism the greatest chance of survival and thus ability to reproduce. The organism that contains the unstable strategy, the weaker trait, is usually eliminated. Thus, within a whole population those that have the most desirable traits continue to reproduce whereas those that do not, die off. This is especially seen when a certain trait invades a population. If this trait makes the organism more fit than existing organisms, then the population will most likely become filled with organisms of this trait, as they would have better chance of survival and reproduction. However, if a trait invades, that is not as effective as those in the current population, the invading organisms will be eliminated.
The article points out how an ancient species of marsupials had been able to survival through many differing harsh conditions and habitats. This is due to their strategies or traits being stable. However, in the present day, these marsupials are endangered. The traits that they have is now not stable. The evolutionarily unstable traits lead to the dying off of these organisms as they are no longer fit compared to other present species.