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Last Word

This week鈥檚 new questions

One reader wants to know why UK sourdough bread tastes so different from the soughdough loaves she so enjoyed when living in California. And what could possibly happen to change gravity on Earth as we know it, asks a 7-year-old reader.

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How long is 鈥榥ow鈥�, the gap between the past and future? (continued)

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What is the evolutionary advantage of birds鈥� ability to mimic sounds?

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What is the smallest animal with eyes and could it see a molecule? (continued)

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This week鈥檚 new questions

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How does our brain stop us falling out of bed while asleep?

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Does long and short-sightedness affect other animals? If so, how do they cope?

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Do we perceive colours around us differently to others? (continued)

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This week鈥檚 new questions

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Why do wet dogs like to shake themselves dry beside people?

Do dogs shake water on you because they love you too much or want to get back at you 鈥� or are we just imagining things? Readers respond

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In fizzy drinks, why do only larger bubbles oscillate as they rise?

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Why do we groan or say 鈥榦hoo鈥� when we sit or stand up? (continued)

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This week鈥檚 new questions

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Why do some people like gambling so much?

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