The Origin of Species is a work of scientific literature by Charles Darwin that is considered to be the foundation of evolutionary biology.πΎπ
CHAPTER II Variability β Individual differences β Doubtful species β Wide ranging, much diffused, and common species, vary most β Species of the larger genera in each country vary more frequently than the species of the smaller genera β Many of the species of the larger genera resemble varieties in being very closely, but unequally, […]
CHAPTER I Causes of variability β Effects of habit and the use or disuse of parts β Correlated variation β Inheritance β Character of domestic varieties β Difficulty of distinguishing between varieties and species β Origin of domestic varieties from one or more species β Domestic pigeons, their differences and origin β Principles of selection,