How do chameleons change colour?
What is it that lets chameleons blend into the background?
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This week鈥檚 new questions
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Would dinosaurs bob their heads like birds do?
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How can I win at Monopoly?
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This week鈥檚 new questions
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Why don鈥檛 worms harm plant roots when they stir up soil?
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Why do some hairs stop growing while others keep going?
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This week鈥檚 new questions
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Why didn’t babies evolve to allow parents to get more sleep?
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Is our sense of new smells keener? What’s the evolutionary benefit of this?
Why do we lose the ability to smell familiar scents and become 'nose-blind'? We delve into this sensory phenomenon
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This week’s new questions
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What’s the difference between an electric and a magnetic field?
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How much cloud cover is there? Readers give their answers
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This week鈥檚 new questions
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