Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle.

The pout-pout fish believes he only knows how to frown, even though many of his friends suggest ways to change his expression, until one day a fish comes along that shows him otherwise.

"This nonfiction picture book uses a guessing game to introduce eight different ocean animals and some unique aspects of their bodies. First, readers are shown a close-up illustration of an unusual part of an animal's body and asked to guess its owner. The following spread reveals the animal's name along with an illustration of the whole animal in its habitat. There's also a brief description of the animal's traits with a special emphasis on the featured...

Uses marine animals, such as twelve jellyfish and two seals, to count down from twelve to one.

On another special field trip on the magic school bus, Ms. Frizzle's class learns about the ocean and the different creatures that live there.

A happy-go-lucky, waffle-loving narwhal and a cynical, no-nonsense jellyfish forge an unlikely friendship and share adventures while exploring the ocean together.

Eight twisty, twirly arms make Octopus really good at tickling. But most of his friends are beginning to find his tickling tiresome, especially when one teeny, tiny tickle lands Octopus in BIG trouble! Octopus tickles Oyster and causes her to lose her precious pearl. How will Octopus get it back?

Set on the coast of the Pacific Northwest, this variation on the traditional cumulative rhyme describes the silly consequences of an old woman's fishy diet.

A sea horse leads the reader past coral reefs and underwater creatures to a sea horse family hidden in a cave. Includes notes on coral reefs and various marine animals.

Narwhal and Jelly are back and Narwhal has a new obsession...peanut butter! He's so obsessed he even wants to change his name to...that's right...Peanut Butter! Ever-sensible Jelly isn't so sure that's the best idea, but is all for Narwhal trying new things (instead of just eating waffles all the time, no matter how delicious waffles are). In this third book, Narwhal and Jelly star in three new stories about trying new things, favorite foods and accepting...