The system of Binomial nomenclature was developed by Linnaeus (Philosophia Botanica, $1751$). Binomial nomenclature is the system of naming organisms using a two-part Latinized (or scientific) name that was devised by the Swedish botanist Carolus Linnaeus; it is also known as the Linnaean system. The first part is the generic name (genus), the second is the specific epithet or name (species).
These organisms also differ in size, color, habitat, physiology, and morphology.
Biologists have developed certain rules and principles supplementary which are helpful in the identification, nomenclature, and classification of organisms.