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Dromedary (Camelus dromedarius, Linnaeus 1758) is an artiodactyl, family Camelids, widespread in Asia, North Africa and, for human intervention, even in Australia. Not to be confused with its closest relative, Camel (Camelus bactrianus, Linnaeus1758), who lives in the desert and steppe of Central Asia, between Anatolia and Mongolia. The Camel, in fact, has two humps on its back equally developed, the Dromedary, however, seems to have only one, for extreme reduction of the front one. These appendices are fat deposits, useful as a reserve in times of food shortages; they, in Camel, also have the characteristic of to sag sideways when they are empty, instead of simply reduce themselves in volume as it happens for the Dromedary. These animals can metabolize fat of their body (in particular of the hump) and produce hydrogen that, with oxygen in the air, is able to create water in the ratio of 1 litre of liquid per 1 kilogram of lipids. The humps therefore, like a bottle, while being a fat deposit, is used to produce water in time of need.