In classification, what is the most specific level of taxonomy?

The most specific level of taxonomy is species. In the hierarchical system of classification, organisms are grouped based on shared characteristics, and as you move down the levels of this hierarchy, the groups become more specific.

Species represents the most precise classification, referring to a group of individuals that can interbreed and produce fertile offspring. For example, in the scientific name of an organism, the species is usually the second part of the binomial nomenclature, such as in Homo sapiens, where sapiens designates the particular species of humans.

In contrast, the levels above species, such as genus, family, and order, encompass broader groups that can include multiple species. Therefore, while genus includes a group of closely related species and family groups several genera together, species pinpoints an individual or group of organisms with the highest degree of similarity and reproductive compatibility.