What is a seashell?

Have you ever picked up a beautiful, swirly seashell on the beach and wondered where it came from? It wasn't just a rock shaped by the ocean waves—it was built by a squishy sea creature! Join Mira and Finn as they dive underwater to discover the amazing world of molluscs. Learn how snails, clams, and oysters use a magical organ called a mantle to literally 3D-print their very own rock-hard armor out of ocean water! Did you know a baby snail is born already wearing its tiny shell and never sheds it? Or that the giant clam can weigh up to 550 pounds, making it as heavy as a full-grown grizzly bear?! Plus, we will uncover the hilarious secret of hermit crabs, the rule-breakers of the beach who can't grow their own shells. Find out what a "vacancy chain" is and how these tiny crabs line up to trade houses in the ultimate underwater swap meet! Get ready for mind-blowing facts, cool science, and an awesome quiz. You'll never look at a seashell the same way again!