"Tide pools form from water left on rocky shores when the tide withdraws. From seaweed and sea snails to shore crabs and seabirds, readers will discover some of the plants and animals that live in and around these ever-changing ecosystems."--

"Twice a day when the tide goes out, an astonishing world is revealed in the tide pools that form along the Pacific Coast. Some of the creatures that live here look like stone. Others look like plants. Some move so slowly it's hard to tell if they're moving at all, while others are so fast you're not sure you really saw them. The biggest animals in the pool are smaller than your hand, while the smallest can't be seen at all without a microscope....