Domestic Bactrian camel
Wild Bactrian camel
Class: Mammalia (Linnaeus, 1758) - mammals
Order: Artiodactyla* (Owen, 1848) - even-toed hoofed animals: includes pigs, sheep goats, cattle, deer
Family: Camelidae (Gray, 1821) - camels
Genus: Camelus (Linnaeus, 1758) - camels
Species: Camelus dromedarius (Linnaeus, 1758) - dromedary or one-humped camel
Species: Camelus bactrianus (Linnaeus, 1758) - domestic Bactrian camel
Species: Camelus ferus (Przewalski, 1878) - wild Bactrian camel
*Anatomical and DNA evidence on the relationship between Artiodactyla (even-toed ungulates) and Cetacea (whales and dolphins) led to a merging of the two orders into a new group, Cetartiodactyla (Montgelard, 1997; reviewed in Kulemzina, 2009). As of October 2012, experts had not agreed on whether to define Cetartiodactyla as an official taxonomic order that would replace Artiodactyla and Cetacea. Some continue to list hippopotamuses in the order Artiodactyla (Franklin, 2011) or use the term Cetartiodactyla without defining it as an order (IUCN, 2008).
Sources: Hare (2008), Ming et al. (2017)
Dromedary camels were domesticated about 4,000-5,000 years ago. There are almost 100 breeds.
Image credit: © San Diego Zoo Wildlife Alliance. All rights reserved.
Cui et al. (2007)
Kadwell et al. (2001)
Marin et al. (2007)