| Soort/Species | Familie/Family | Orde/Order | Klasse/Class | Stam/Phylum | Rijk/Kingdom |
|---|---|---|---|---|---|
| Nijlpaard | Nijlpaarden | Evenhoevigen | Zoogdieren | Gewervelden | Dieren |
| Common hippopotamus | Hippopotamuses | Even-toed ungulates | Mammals | Chordate | Animals |
| Hippopotamus amphibius | Hippopotamidae | Artiodactyla | Mammalia | Chordata | Animalia |