Adaptation in Human Populations
The evolutionary results of an aquatic environment:
Moken children can distinguish underwater objects less than 1.5 millimetres wide; Europeans struggle to make out anything less than 3 mm across1, biologist Anna Gislén of Lund University, Sweden, and her colleagues found."They use the optics of the eye to the limits of what is [humanly] possible," says Gislén. The team compared the sub-aqua vision of native Moken and holidaying European kids, aged 7-14 years.
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