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Mystery #2Tier 2-3minibeasts / spiders

How does a spider spin such a perfect, sticky web from its own body?

A spider builds a wide, neat web out of thread finer than a hair, and it never nips to a shop for the silk. It makes every strand inside its own body. Stranger still, the silk starts as a runny liquid but comes out as a thread so strong it can stop a flying insect in mid-air. So how does a spider turn liquid into thread?

An orb spider's web strung between grass stems, every thread beaded with dew and lit from behind
Photo: Jacek Halicki · CC BY-SA 4.0 · via Wikimedia Commons

Your guess

Where do you think the silk comes from, and how does a spider turn it into thread?

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