51动漫

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This week鈥檚 new questions

Why is it that less than five per cent of mammal species are monogamous, compared to about 90 per cent of bird species? And how many life-extending cups of tea I must drink to counter the life-shortening effect of eating a hotdog?

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Twins in the dock: the strange cases that leave justice at a loss

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Twisteddoodle’s letter to Santa

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Weather Photographer of the Year - collage for main image

Earth

Wintry scenes top Weather Photographer of the Year competition

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2F26A1N Three partridges flapping wings in the snow

Life

Join the Christmas Bird Count and contribute to conservation research

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Can you hear the strains of an imaginary Bing Crosby?

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Tom Gauld on a near miss with aliens

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Twisteddoodles on the weird appeal of a lab safety talk

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Life

Spotlight on plankton, the ocean’s fascinating, bite-sized creatures

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DNPBE6 The field of red poinsettias being grown for Christmas in Cambridgeshire.

Life

Learn the secrets of poinsettias to help them thrive

Shop-bought poinsettias produce a stunning display of crimson, and these tropical plants can be coaxed into an encore performance if you have the patience, says Clare Wilson

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How to foster a toddler’s yen for engineering

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Does a latte cool faster than a cappuccino?

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Why do loose screws only get looser and not the other way round?

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How fast would you have to travel to be able to run on water? (part 2)

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