Most people can’t see well under water, but the Moken people in Thailand can. Anna Gislen, a Swedish scientist, ____ how people see when a colleague ____ visiting the Moken. ____ Gislen got there, she ____ that the children ____ see perfectly well in deep water – twice as well as European children! ____ they were swimming, the children ____ their eyes open so they easily ____ fish. Interestingly, the children’s eyes ____ red from the salt water.

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