In the Linnaean classification,
organisms are placed in hierarchical groups based on appearance.
Organisms in lower groups bear more similarity in appearance.
Each organisms is identified by a
binomial scientific name: its Genus and species.
For example, Equus quagga for the Zebra, which also belongs in:
- Family Equidae,
- Order Perissodactyla,
- Class Mammalia,
- Phylum Chordata,
- Kingdom Animalia,
- Domain Eukaryota.
The binomial name for humans is Homo sapiens.