Chemotaxonomy
Chemotaxonomy is the science of classifying organisms based on similarities and differences in their chemical composition. This field combines principles of chemistry and taxonomy to study the chemical characteristics of organisms and use this information to determine their evolutionary relationships and classify them into different groups. By analyzing the presence and quantity of specific chemicals in plants, animals, and microorganisms, chemotaxonomists can identify patterns that help in understanding the biodiversity and evolutionary history of different species.