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Dromedary

life science Maturity 11-13 Next article →

The dromedary, also known as the Arabian camel, is a large mammal within the genus Camelus.

Dromadaire4478
Dromadaire4478

It is easily identified by the single hump located on its back. This species is the tallest of the three existing camel species. Adult males are quite large, standing high at the shoulder. Females are also tall, though they generally weigh less than males. The dromedary plays a vital role in many arid regions of the world. It provides milk, meat, and transport for many human populations.

Camel in desert
Camel in desert

To survive in harsh desert environments, the dromedary has developed unique biological mechanisms. Its most famous feature is the hump, which is composed of fat bound by fibrous tissue. This stored fat serves as an energy source when food is scarce. The animal also possesses incredible water-retention abilities. A dromedary can tolerate losing more than 30% of its total body water. Its blood is specially adapted for these extreme conditions. The red blood corpuscles are oval-shaped. This specific shape allows the blood to flow more easily even when the animal is dehydrated.

Camel kidney (longitudinal cut).- FMVZ USP-30
Camel kidney (longitudinal cut).- FMVZ USP-30

Physical traits further assist the dromedary in its desert habitat. It has a long, curved neck and a narrow chest. Its coat is usually brown, but it can range from black to nearly white. The animal features thick, double-layered eyelashes and bushy eyebrows to protect its eyes.

Dromadaire d'Algérie
Dromadaire d'Algérie

To protect its feet, it has two toes on each foot that act like flat, leathery pads. The dromedary is a digitigrade animal, meaning it walks on its toes. Interestingly, it moves both legs on one side of its body at the same time. This movement helps it navigate sandy terrain efficiently.

Dromedary Footprint in Sand
Dromedary Footprint in Sand

History shows a long relationship between humans and this species. Dromedaries were likely first domesticated in the Arabian Peninsula roughly 4,000 years ago.

While they once lived naturally in the wild in places like the Sahara, they have not occurred naturally in the wild for nearly 2,000 years. Today, they are kept in semiarid to arid regions across the Old World. This includes parts of Africa, the Arabian Peninsula, and the Thar desert in India and Pakistan. There are even feral populations living in Australia.

07. Camel Profile, near Silverton, NSW, 07.07.2007
07. Camel Profile, near Silverton, NSW, 07.07.2007

Taxonomy helps scientists understand where the dromedary fits in the tree of life. It belongs to the family Camelidae. The Swedish zoologist Carl Linnaeus gave the species its binomial name, Camelus dromedarius, in 1758.

Dromedary heart
Dromedary heart

The dromedary is closely related to the two-humped Bactrian camel. In 2007, a study by Peng Cui of the Chinese Academy of Sciences examined the evolutionary relationships of the Camelini tribe. This study suggested that the two main tribes of Camelidae diverged 25 million years ago. This was earlier than scientists had previously estimated from North American fossils.

Because they are closely related, dromedaries and Bactrian camels can interbreed. This process creates hybrids that are often larger and stronger than their parents.

Uoth
Uoth

These hybrids can carry heavier loads, making them useful as pack animals. They may have one large hump or two smaller, lopsided humps. However, not all combinations are successful. Some hybrids can be bad-tempered or grow as runts. Scientists have looked at genetic divergence to see if they are truly different species. A 1994 analysis of the mitochondrial cytochrome b gene showed a 10.3% divergence in their sequences.

In social settings, dromedaries typically live in herds of about 20 individuals.

2019 10 15 Socio Economic Development-18 (49126379212)
2019 10 15 Socio Economic Development-18 (49126379212)

These groups are usually led by a single dominant male. Their reproductive cycle is tied to the seasons, with mating peaking during the rainy season. After a gestation period of 15 months, a female typically bears a single calf.

Camelcalf-feeding
Camelcalf-feeding

This cycle ensures that young camels are born when resources might be more available. This structured social and biological system allows the dromedary to remain a dominant figure in desert ecosystems.

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🖼️ Images & Media (18)
File:Dromadaire d'Algérie.jpg
Dromadaire d'Algérie.jpg
File:Dromadaire4478.jpg
Dromadaire4478.jpg
File:Dromedary heart.jpg
Dromedary heart.jpg
File:Camelus dromedarius (Dromedary) (48724323241).jpg
Camelus dromedarius (Dromedary) (48724323241).jpg
File:Camel kidney (longitudinal cut).- FMVZ USP-30.jpg
Camel kidney (longitudinal cut).- FMVZ USP-30.jpg
File:Lion Attacking a Dromedary full.jpg
Lion Attacking a Dromedary full.jpg
File:SFEC-2006-10-EGYPT-LUXOR-CAMEL0303.JPG
SFEC-2006-10-EGYPT-LUXOR-CAMEL0303.JPG
File:Dromedary Footprint in Sand.jpg
Dromedary Footprint in Sand.jpg
File:Desert (6486255967).jpg
Desert (6486255967).jpg
File:Camelcalf-feeding.jpg
Camelcalf-feeding.jpg
File:2019 10 15 Socio Economic Development-18 (49126379212).jpg
2019 10 15 Socio Economic Development-18...
File:Camels in Dasht-e Lar, Alborz mountains, Kamardasht Lar, Tehran province چرای شترها در کمردشت لار - panoramio.jpg
Camels in Dasht-e Lar, Alborz mountains,...

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