The scientific system of naming organisms is called binomial nomenclature.
It was introduced by Carl Linnaeus.
Two parts of binomial nomenclature:
Genus: According to binomial nomenclature, the first letter of the genera of an organism is denoted by a capital letter, comes before species, and is written in italics or underlined.
Species: According to binomial nomenclature, the first letter of a species starts with a smaller letter and comes after the name of the genus of an organism.