"While at the ocean, a curious young girl goes searching for a seashell and finds an octopus friend instead. The encounter turns into an afternoon full of play and discovery. From eating, to napping, to playing, octopuses are just like us ... but are they really? Maybe not quite. For instance, when you spot an octopus, you might be tempted to shake its hand. Please don't. A friendly wave is just fine. "Hello, Octopus!" Here the sidebar explains, "All octopuses have eight arms. Some kinds of octopuses are able to detach an arm to help it escape when trapped or threatened. But don't worry, the arm will grow back again. Octopuses are one of the very few animal species that can regrow a part of their body." Throughout the underwater adventure, fun-to-read sidebars add context by describing a variety of fascinating facts about octopuses, including that they have three hearts but choose just one mate; they are boneless and can squeeze into (or out of) tight spaces; and they are expert hiders who can change their skin colour and texture to blend into their surroundings. Ends with a final page of Extra Octopus Facts"-- Provided by publisher.