Lutfi Fauziah
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Illustration of camels in the desert.
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Nationalgeographic.co.id—One of the animals that has the extraordinary ability to survive without water for a long time is unta. They could travel long distances in the desert for weeks without drinking water. It’s amazing their body’s ability to deal with this kind of stress.
For example, unta arab hump one or Camelus dromedarius has the legendary ability to travel up to 100 miles or 160 kilometers in the desert for weeks without access to water. Analysis of the body unta–unta arab it reveals that they have kidney which is well developed. Kidney they are proven to have a significant role in helping them overcome the dehydration and rehydration processes in their bodies.
In humans, kidney reacts to retain as much moisture as possible when the body lacks water. Fluid is filtered in the cortex, area kidney where water flows to another part called the medulla. Then, ions from the dissolved salts are pumped across the membrane to cause an imbalance that forces some of the water to return to the blood, while another part of the water is expelled as urine.
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