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My 1,000
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   answer      conclusion      daughter      different      different      dust      evaporation      length      long      mammals      models      mystery      nobody      opinions      research      researcher      study      talent      third      tunnel  
Scientists now know the to the age-old question of why eyelashes are as as they are. Researchers conducted many tests on the eyelashes of 22 . One test used a special wind and a model eye. The tests were used to get mathematical of how wind blows over eyelashes. The of the head is that eyelashes help protect the eyes from drying out. Also, the best eyelash is one-third as long as the eye's width. The ratio of eyelash length and eye width was one- for many mammals.

Researcher Dr Hu started his after his was born. He wondered why she kept on batting her eyelids. He said: "Eyelashes around the eyes in mammals have always been a ." There are a lot of , from catching to making people blink. He said it was the first aerodynamic of eyelashes. It used three ways to show eyelashes reduce of the eye by 70 per cent. They also reduce dust in the eyes. Hu has a for, "looking at what everybody has looked at, and seeing what has seen."

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