Here's a breakdown:

* Taxonomy is the science of classifying organisms based on shared characteristics. It helps us understand the relationships between different living things and provides a framework for organizing the vast diversity of life on Earth.

* Taxonomic classification uses a hierarchical system of categories, with each category becoming more specific as you move down the levels. The main categories are:

* Domain: The broadest category, encompassing all living things.

* Kingdom: A major grouping of organisms (e.g., animals, plants, bacteria).

* Phylum: A group of related classes (e.g., chordates, which include vertebrates).

* Class: A group of related orders (e.g., mammals, reptiles).

* Order: A group of related families (e.g., primates).

* Family: A group of related genera (e.g., hominids).

* Genus: A group of closely related species (e.g., *Homo*).

* Species: The most specific category, referring to a group of organisms that can interbreed and produce fertile offspring (e.g., *Homo sapiens*).

So, when scientists group living things, they are performing taxonomy!