It is believed that there are two largest deserts of the world - Antarctica and Sahara, the area of which exceeds 9 million square kilometers.
The valley of death, recognized by the all-planet champion in aridity and air temperature, is densely populated - there are 44 species reptiles there, mammals are represented by 40 species, 545 species grow in the desert, 15 species of birds, 12 species of amphibians, and even fish are represented by 13 species.
The record for aridity is the area of the Atacama Desert, in which rain has not been observed for four centuries.
7Among the interesting facts about the desert, we note that the absence of moisture causes its inhabitants to adapt to local harsh conditions. For example, the inhabitant of the deserted part of Australia Lizard Moloch, has developed a unique ability to collect moisture from his skin. All the liquid that falls on her skin drains into the mouth of the lizard through microscopic size channels between the skin scales. Burying his belly in wet sand, the lizard extracts moisture from it.
In the Sahara, there are often such winds that during one day they can carry a million tons of dust out of it. If we had planned to transport such amount of dust by rail, then we would need a train of 400 km in length. The temperature of desert air during this period rises to almost 50 °, and the humidity drops very sharply.
Translated from the Mongolian name of the desert "Gobi" means "waterless place". So it is common to call all desert, as well as semi-desert areas of the Central Asian region. On its territory, the Gobi is considered the largest Asian desert.
Typical for deserted places inhabitants are lizards, various snakes, scorpions and, of course, camels.
Uneasy living conditions in the desert did not deprive the locals of a peculiar sense of humor. So, the zone in the border areas, where even since the war of Israel and Egypt were mine fields, they called "the edge of flying camels."
Deserts are famous for their mirages. After all, only in the Sahara they are fixed almost 160 thousand annually. All mirages are diverse - they are wandering or stable, horizontal or vertical. Special tourist maps are issued with caravan tracks marked on them, where the places of observation of mirages are marked. These are areas with wells that appear there, green oases, lush groves and mountain ranges. "