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How do oysters make their shells?

December 12, 2025 26:49 4.75 MB ( 34.26 MB less) Downloads: 0

On a rainy, windy day, But Why hopped on a ferry and headed to Governor’s Island in New York City with one thing on our minds - oysters! We met up with Mike McCann of the Billion Oyster Project to learn more about these very special bivalves. How do they get their shells? How long do they live? What do oysters eat and who eats them? Why do people eat oysters without cooking them? 

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