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All the climbing plants and weeds in my garden twine anti-clockwise. Is there an evolutionary advantage to this? And do any twine clockwise? And what happens to the electrons, protons, neutrons and photons that exist in living beings when they die?

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All the climbing plants and weeds in my garden twine anticlockwise. Is there an evolutionary advantage to this? And do any twine clockwise?

Peter Waller,

Bristol, UK

Subatomic particles and atoms, conceptual illustration.

What happens to the electrons, protons, neutrons and photons that exist in living beings when they die?

Andrew Pipkins,

Forney, Texas, US

To answer this question – or ask a new one – email lastword@newscientist.com.

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