shellfish:

A water animal with a shell, especially a mollusk such as a clam or a crustacean such as a lobster that is used for food. A shellfish is not really a fish, because it lacks a backbone.

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Earth Day eBook SaleWednesday April 11, 2018

Earth Day eBook Sale

I am so pleased that HarperCollins is doing a special promotion with two of my books for Earth Day. Between now and April 23, the eBook editions of two of my books, GLOBAL WARMING and WILDFIRES, will be on sale for just 99¢…

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