• Question: can anything on earth survive with out water?

    Asked by cheese2000 to Kate, Mark U, Tess, Yue on 3 May 2012.
    • Photo: Tess Newman

      Tess Newman answered on 3 May 2012:

      Everything on Earth needs water to survive. Some organisms may not drink water, but they get their water needs from their food.

      Life on our planet consists of cells, and cells require water. There may be some other form of life on another planet that has evolved differently, and so would not require water for life, but not on Earth

      However, some organisms can live in some pretty extreme conditions. Take a look at the Tardigrade – it can survive a decade without water – A human can only live for about 3-5 days without water