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    Kangaroo Rats
    ...rarely drink water. Instead, they have a highly water-efficient metabolism (their kidneys are at least four times more efficient at retaining water and excreting salt than those of humans) and manufacture water through a metabolic process called oxidative phosphorylation.

    One special feature of the kangaroo rat is the animal's efficient kidneys. The kangaroo rat has a longer loop of Henle in the nephrons which permit a greater magnitude of countercurrent multiplication and thus a larger medullary vertical osmotic gradient. As a result, these rodents can produce urine that is concentrated up to an osmolarity of almost 6,000 mosm/liter, which is five times more concentrated than maximally concentrated human urine at 1,200 mosm/liter. Because of this tremendous concentration ability, kangaroo rats never have to drink; the H2O produced metabolically within their cells during oxidation of foodstuff (food plus O2 yields CO2 + H2O + energy) is sufficient for their body. Kangaroo rats lose so little water that they can recover 90% of the loss by using metabolic water gaining the remaining 10% from the small amount of water in their diet. Kangaroo rats lose water mainly by evaporation during gas exchange and gain water mainly from cellular metabolism.

    -Wikipedia


    So if kangaroo rats can do this, would there be a way to create an artificial way of getting access to clean water this way? Or am I just being too hopeful?

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    meika     Sat, Jan 12, 2008  Permanent link
    no, its more a system to preserve water while supplementing any losses with metabolic water
    TheJehosephat     Sat, Jan 12, 2008  Permanent link
    Ah, I see. So would the general idea be to just preserve or conserve water in the first place? :P
     
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