Scientists unveil first test-tube burger

    10:57 AM, Aug 5, 2013   |    comments
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    UNDATED (CNN) -- Scientists in London are serving up the first ever, test-tube beef burger made in a laboratory using stem cells.

    It cost tens of thousands of dollars to develop.

    And its creators hope "cultured beef" could help cut the billions of tons of greenhouse gases currently released by livestock.

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