Frozen Evolution. Or, that’s not the way it is, Mr. Darwin. A Farewell to Selfish Gene.

 Systematic biology is concerned with the study of biodiversity. Systematic biology is mostly considered to be a synonym of taxonomy and both terms will be used in this text in the same sense. However, some authors consider systematic biology to be broader subject encompassing all the aspects of study of biodiversity, including the diversity of biological structures and functions, while taxonomy is understood in a narrower sense as a discipline attempting to catalogue all species, to arrange these species in systems of usually hierarchically ordered groups and naming of these groups in accordance with the rules and recommendations of taxonomic nomenclature. see also Taxonomy.