Just Wondering: How can crustaceans grow with a hard shell?

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Just Wondering: How can crustaceans grow with a hard shell?

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I was just wondering about crustaceans, things like lobsters and crabs.They’re covered in hard shells, yet somehow they keep growing. They molt, they disappear for a while, and then suddenly they’re bigger. How does that actually work? And what do we really know about how these animals live, eat, and reproduce? Marine biologist Hunter Stevens, Research Manager with CPAWS Nova Scotia spoke to Andrew Carter.

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