The Exoskeleton of Spiders

There's a chemical reaction that softens the exoskeleton from the inside out. And so they kind of slowly just pull themselves out. They're still suspended on a piece of silk. But then they use the hydraulics to expand. That's the growth. Then they're waiting in this expanded state so you can really see them to stretch out the legs. The spiders are predators and voracious predators, particularly of other insects.

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