science

How do birds know where to migrate?

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Birds navigate during migration using multiple internal and external cues, including the Earth's magnetic field, the position of the sun and stars, landmarks, and their inherited instincts. Different bird species rely on different combinations of these navigation methods.

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How do spiders make webs?

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Spiders produce silk from special glands in their abdomen and spin it into webs by moving their legs and body in specific patterns. Different spider species create different web shapes, like orbs, funnels, or sheets, depending on their hunting needs.

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What is the Maillard reaction in cooking?

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The Maillard reaction is a chemical process that occurs when proteins and sugars in food are heated together, creating brown color, complex flavors, and appealing aromas. This reaction is what makes seared meat, toasted bread, and roasted vegetables taste delicious.

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How does evolution actually work?

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Evolution is the process by which living organisms change and develop over many generations through natural selection, where individuals with traits best suited to their environment are more likely to survive and pass those traits to their offspring. Over millions of years, these small changes accumulate and can lead to the formation of new species.

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What is DNA in simple terms?

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DNA is a molecule inside cells that carries instructions for building and running all living things. It is shaped like a twisted ladder and contains genetic information passed down from parents to children.

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