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Arabian oryx

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The Arabian oryx, also known as the white oryx, is a medium-sized antelope. It belongs to the bovid family, which includes animals like sheep and cattle. This species is the smallest member of the Oryx genus. It is native to the desert and steppe regions of the Arabian Peninsula. The oryx is a vital part of its ecosystem and holds great cultural importance. It serves as the national animal for several countries, including Jordan, Oman, the United Arab Emirates, Bahrain, and Qatar.

Arabian Oryx (8454554499)
Arabian Oryx (8454554499)

Physically, the Arabian oryx is quite striking. Its coat is an almost luminous white color. The undersides of its body and its legs are brown. Distinct black stripes appear where the head meets the neck. These stripes also appear on the forehead, the nose, and run from the horns across the eye to the mouth. Both males and females possess long, straight, or slightly curved horns. These horns are ringed and can be very sharp. The animal stands between 40 and 50 centimeters tall at the shoulder. It typically weighs between 15 and 25 kilograms.

To survive in harsh desert environments, the oryx uses complex physiological adaptations. During the hot summer months, it can drastically reduce its minimal fasting metabolic rate. This means it uses less energy to stay alive. The oryx will lie completely inactive under shade trees during the day. It ranges over smaller areas at night to find food. This behavior helps the animal conserve water. It also allows its body temperature to rise during the heat of the day. This reduces the need for evaporative cooling, which saves even more body water. At night, the cool air lowers its temperature back to normal.

Reem-Lavan001
Reem-Lavan001

A specialized network of blood vessels helps protect its brain from heat. This network is called the rete mirabile. It branches from the two carotid arteries that lead to the brain. This system allows for heat exchange between warm arterial blood and cooler blood in the sinus cavities. Because of these changes, the oryx can reduce its urine volume and faecal water loss by at least 50 percent. These adaptations allow the oryx to go for several weeks without drinking any water. It can detect rainfall from a distance and travels toward new plant growth. Its diet consists mainly of grasses, but it also eats buds, herbs, fruit, tubers, and roots.

Arabian Oryx (8454554499)
Arabian Oryx (8454554499)

The history of the Arabian oryx includes many scientific discoveries. Peter Simon Pallas first described the species in 1767. He identified its range as Arabia and perhaps Libya. In 1857, the Zoological Society of London obtained the first living individual in Europe. A scientist named John Edward Gray proposed the name Oryx beatrix after Princess Beatrice of the United Kingdom. Later, in 1903, Oldfield Thomas gave the Arabian oryx its original scientific name. The animal has also inspired ancient myths. Some historians believe the myth of the unicorn may be based on the oryx. From certain angles, the animal might look like it has only one horn. Since its horns are made of hollow bone, they cannot be regrown if lost.

South Arabian - Fragment of a Frieze with an Ibex and Oryxes - Walters 2138
South Arabian - Fragment of a Frieze with an Ibex and Oryxes - Walters 2138

The Arabian oryx faced a severe threat of extinction in the 20th century. During the 1930s, people began hunting them using automobiles and rifles. Some hunts were very large and used as many as 300 vehicles. By the mid-20th century, the northern population was gone. The last oryx in the wild was reported in 1972. To save them, groups like the Phoenix Zoo started "Operation Oryx" in 1962. They created the first captive-breeding herd in any zoo. This project helped increase their numbers in captivity. Reintroduction into the wild began in 1980, starting with releases in Oman.

Arabian Oryx (8454554499)
Arabian Oryx (8454554499)

Conservation efforts have seen significant success. In 1986, the species was classified as endangered on the IUCN Red List. However, in 2011, it became the first animal to revert to vulnerable status. This change happened because the wild population grew. In 2016, estimates showed 1,220 individuals living in the wild. This included 850 mature individuals. There were also between 6,000 and 7,000 oryx in captivity worldwide. While many live in Saudi Arabia, they have been reintroduced to Oman, Israel, Syria, Jordan, the UAE, and Bahrain. The total reintroduced population is now estimated at around 1,000 individuals.

Arabian Oryx (8454554499)
Arabian Oryx (8454554499)
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File:Reem-Lavan001.jpg
Reem-Lavan001.jpg
File:South Arabian - Fragment of a Frieze with an Ibex and Oryxes - Walters 2138.jpg
South Arabian - Fragment of a Frieze with...
File:Arabian Oryx (8454554499).jpg
Arabian Oryx (8454554499).jpg
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