Sunflowers dance to their own beat

Why do the sunflowers chase the sun as they grow?
11 August 2016
Presented by Lucka Bibic

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Sunflowers are tracking the sun

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It's summertime and fields are filled with sunflowers, devotedly following the rising sun. But why do they do it? This is a question that scientists at the University of California, Davis, have striven to answer and Dr Stacey Harmer thinks she has the answer as she explained to Lucka Bibic...

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