Common Clues Juergens found something surprising. In dry weather, the grasses around the circles stayed alive. He wondered why. T en he found wet sand under each circle. T e water in the sand kept the grass alive. He also found sand termites under


each circle. Water and termites were the common clues. Juergens thought about them and formed a theory.


Mystery Solved? Juergens thinks that termites eat the grass roots. T at kills the grass and leaves a circle of bare dirt. When rainwater soaks into the


dirt, it forms a pool of water under each circle. T e termites drink this water. T at’s how they survive. Grass around the circle soaks up the water. T at’s why the grass stays alive. Maybe now the mystery is solved!


MAY 2014 19


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