Linnaean taxonomy

:Taxonomy in general refers either to a hierarchical classification of things, or the principles underlying that classification.

Example classification: humans

As an example, consider the Linnaean classification for modern humans:

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

• Domain: Eukarya (all eukaryotes, organisms whose cells contain nuclei)
• Kingdom: Animalia (all animals, which are heterotrophs)
• Phylum: Chordata (all animals with a notochord)
• Subphylum: Vertebrata (all vertebrates, i.e., with a spinal column)
• Class: Mammalia (all vertebrates whose females secrete milk to nourish young)
• Subclass: Placentalia (Eutheria) (mammals who are nourished in utero through a placenta)
• Order: Primates (mammals with five opposable digits, binocular vision, and large brains)
• Family: Hominidae (all hominids, current and ancestral)
• Genus: Homo (upright primates; 'man')
• Species: Homo sapiens (humanity; 'wise man')
• Subspecies: Homo sapiens sapiens (modern man)