Other xerophytic plants have developed similar strategies by a process known as convergent evolution. [47] Where sand does occur, it is usually in large quantities in the form of sand sheets or extensive areas of dunes. They share some characteristics of a true desert and are usually located at the edge of deserts and continental dry areas. Others occur on the eastern side of the Rocky Mountains, the eastern side of the southern Andes and in southern Australia. And we are looking at some of the inhabitants of the driest and hottest places on earth! [116] The greening of the desert remains an aspiration and was at one time viewed as a future means for increasing food production for the world's growing population. [47] A hamada is a type of desert landscape consisting of a high rocky plateau where the sand has been removed by aeolian processes. Other deserts are flat, stony plains where all the fine material has been blown away and the surface consists of a mosaic of smooth stones. [44], Many people think of deserts as consisting of extensive areas of billowing sand dunes because that is the way they are often depicted on TV and in films,[45] but deserts do not always look like this. The desert shrimp does this, appearing "miraculously" in new-formed puddles as the dormant eggs hatch. With few inputs, they were at the mercy of the weather and may have lived at bare subsistence level. [8] The surface of the trunk is folded like a concertina, allowing it to expand, and a large specimen can hold eight tons of water after a good downpour. Desert rat is a colloquial term which refers to all the rats living in the desert which belong to the order Rodentia. Be prepared for some really cool and robust animals. Shallow caves are sometimes formed at the base of cliffs by this means. The weight in female varies from 130 to 200 pounds while the male weighs between 220 and 276 pounds. Some are deciduous, shedding their leaves in the driest season, and others curl their leaves up to reduce transpiration. Moist warm air rises over the land, deposits its water content and circulates back to sea. Many, such as the Bushmen in the Kalahari, the Aborigines in Australia and various tribes of North American Indians, were originally hunter-gatherers. Here are two other hilarious pictures of Rain Frogs. The Swahili name for these gazelles is ‘’Swala Granti’’ and they are named after Lt Col Grant (a nineteenth century Scottish explorer). They used terracing techniques and grew gardens beside seeps, in moist areas at the foot of dunes, near streams providing flood irrigation and in areas irrigated by extensive specially built canals. For arid climate, see, Area of land where little precipitation occurs, International Center for Agricultural Research in the Dry Areas, "How mountains influence rainfall patterns", "CHAPTER 8: Introduction to the Hydrosphere (e) Cloud Formation Processes", "The formation of fine particles in sandy deserts and the nature of 'desert' loess", 10.1306/74d71a69-2b21-11d7-8648000102c1865d, "Physics, Mechanics and Processes of Dust and Sandstorms", "Retrieval of mass and sizes of particles in sandstorms using two MODIS IR bands: A case study of April 7, 2001 sandstorm in China", 10.1175/1520-0450(1969)008<0032:GCODD>2.0.CO;2, "The electrification of snowstorms and sandstorms", "Misconceptions surround desert terrain, vegetation", "Desert varnish: evidence for cyclic deposition of manganese", "Geology of Grand Canyon National Park, North Rim", "Even the Driest Place on Earth Has Water", "Two dry for life: the Atacama Desert and Mars", "Too dry for life: The Atacama Desert and Mars", "Colonel Qaddafi and the Great Man-made River", "Nature's green revolution: the remarkable evolutionary rise of C4 plants", "How Plants Cope with the Desert Climate", "Adaptation to cold in arctic and tropical mammals and birds in relation to body temperature, insulation, and basal metabolic rate", "Kidney mass and relative medullary thickness of rodents in relation to habitat, body size, and phylogeny", "A method for the calculation of metabolic water", "What secrets lie within the camel's hump? Bottomlands may be salt-covered flats. The Sahara Desert also has the empty space totalling hundreds of square miles required to house fields of mirrors for solar plants. The Fennec Fox is super cute and you can actually keep it as a pet. For example, the red of many sand deserts comes from laterite minerals. There may be underground sources of water, in the form of springs and seepages from aquifers. These animals concentrate excretions while avoiding evaporations to conserve water. [38] In a study of a dust storm in China in 2001, it was estimated that 6.5 million tons of dust were involved, covering an area of 134,000,000 km2 (52,000,000 sq mi). [128] Some accounts give vivid descriptions of desert conditions, though often accounts of journeys across deserts are interwoven with reflection, as is the case in Charles Montagu Doughty's major work, Travels in Arabia Deserta (1888). It looks like a devel snake and has often been subject for much fantasy and stories. In the Thornthwaite climate classification system, deserts would be classified as arid megathermal climates. The name Dik-dik refers to all the four small antelope species which belong to the Madoqua genus that thrives in the bushlands of southern and eastern Africa. [123][124], In the Second World War, the Western Desert Campaign began in Italian Libya. Some of the most common owl birds in the desert are: The Owls rest during the day, and they will often be found sitting half asleep with their eyes closed. The males have 3inches long horns which are longitudinally grooved and slanted backward. Desert larks breed in semi-deserts and deserts of western India and Morocco. We find 5 types of hummingbirds in the desert: They are incredible creatures, as they linger still in the air. [71] They limit water loss by reducing the size and number of stomata, by having waxy coatings and hairy or tiny leaves. Barchan dunes are produced by strong winds blowing across a level surface and are crescent-shaped with the concave side away from the wind. [125] Its most easterly point was at El Alamein in Egypt, where the Allies decisively defeated the Axis forces in 1942. They are found in Africa, the Middle East as well as in parts of Asia. Many trade routes have been forged across deserts, especially across the Sahara Desert, and traditionally were used by caravans of camels carrying salt, gold, ivory and other goods. Gerbil, also known as a desert rat is made up of over 110 rat species which live in Asia, India, and Africa, plus this includes jirds and sand rats. There may also be underground sources of water in deserts in the form of springs, aquifers, underground rivers or lakes. It also jumps around like a Kangaroo but it is not related to the Kangaroo. The Tuareg were traders and the goods transported traditionally included slaves, ivory and gold going northwards and salt going southwards. Other coastal deserts influenced by cold currents are found in Western Australia, the Arabian Peninsula and Horn of Africa, and the western fringes of the Sahara. You can read more here about why animals are nocturnal. [19] Like arid deserts, temperatures can vary greatly in semi deserts. Some cold deserts are far from the ocean and others are separated by mountain ranges from the sea, and in both cases, there is insufficient moisture in the air to cause much precipitation. We are not so interested on the animals that live on deserts instead of that we talk more about the animals living on jungles. Large numbers of slaves were also taken northwards across the Sahara. [14] The characteristics of hot deserts include high temperatures in summer; greater evaporation than precipitation, usually exacerbated by high temperatures, strong winds and lack of cloud cover; considerable variation in the occurrence of precipitation, its intensity and distribution; and low humidity. The Arabian Oryx became extinct in 1972, but they were reintroduced into the wild in Oman in 1982. The Grant’s gazelle is a gazelle species which is distributed from Lake Victoria to the Kenyan coast and from Ethiopia to South Sudan. This literally means “dry” and “to inhabit” in greek. [129] Antoine de Saint-Exupéry described both his flying and the desert in Wind, Sand and Stars[130] and Gertrude Bell travelled extensively in the Arabian desert in the early part of the 20th century, becoming an expert on the subject, writing books and advising the British government on dealing with the Arabs.

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