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Spiders grow by shedding their exoskeleton in a process called spider molting. Since their outer shell can’t stretch, they must shed it from time to time to make room for growth. When you find what looks like a dead spider, it may actually be a molted spider, which is just the empty shell left behind. Molting can happen several times in a spider’s life depending on the species.
Here are some commonly asked questions about spider molting:
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