Scientists classify animals to provide a standardized system of identifying and describing organisms that exhibit similar characteristics. Despite the vast diversity of animal species on Earth, categorizing these organisms into related groups simplifies taxonomic investigations.
Since its initial conception, the classification of animals based on certain criteria has undergone major revisions. Although the traditional classification scheme proposed by Carolus Linnaeus proves inadequate in modern times, the binomial nomenclature system devised by this Swedish botanist remains extensively used by scientists throughout the world. This unique naming convention provides a global basis for experts in the field, which avoids confusion and prevents an already identified animal from being reclassified.
Scientists also classify animals to depict the interrelationships among various organisms. The common ancestral origins shared by animals within the same category provides critical insight into the evolutionary history of modern species.