A team of researchers at the University of Wisconsin-Madison grew a pair of vocal cords that appear to be able to produce sound.

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Dr. Nathan Welham, who lead the project, said they could someday help the millions of people who have lost their ability to speak.

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He said the vocal cords his team created functioned phenomenally well, adding that they were comparable to the real thing.

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Researchers started by extracting two types of cells from donated vocal cords, and then used those cells to grow their own set. 

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The created tissue made sound, which the AP reported was similar to the buzzing of a kazoo.

Fonte: Business Insider