Running head: LIFE SCIENCESArticle CritiqueName:University:Course:Tutor:Date:Purpose of conducting the study The study aims at explaining the fact that competitor species may exhibit evolutionary properties on one another which causes displacement of ecological characters. They develop divergent traits of resource exploitation so as to optimize use of resources. This means that when two or more species which are competing for same resources live in the same environment over time, they tend to develop changes in their characters which enable them to maximize on the resource use (Peter, et al, 2006). An example of this is changes on beaks or jaws. The species with the ability to develop the suitable characteristics for survival is capable of dominating the environment.