title: [Biological evolution and specialization].
abstract: There were some disputes about the concept and mechanism of biological evolution. This paper tried to give more explanations on the key concepts. The biological adaptability was distinguished into two different concepts: biological evolution and specialization. The former was defined as the process of biologically gradual evolvement, and the latter was considered as the process of species formation at horizontal development. Moreover, a new conceptual framework was applied to the popular biological theories known by people, and the previous research results or discoveries were explained over again.
authors.affiliation: School of Life Sciences, Institute of Grassland Science, Northeast Normal University, Changchun 130024, China. luowd410@nenu.edu.cn
authors.forename: Weizhen
authors.initials: W
authors.lastname: Luo
authors.forename: Deli
authors.initials: D
authors.lastname: Wang
mesh_terms: D000818:Animals; D005075:Biological Evolution; D006801:Humans; D012641:Selection, Genetic