The Lucky Hermit Crab and Her Swirly New Shell

A Colorful, Rhythmic
& Rhyming
Hermit Crab Adventure

The lucky hermit crab found a perfect, swirly new shell to replace her old home she had outgrown. But when she gets too big for this shell, will she be able to let go of her favorite shell to find a new bigger shell that will keep her safe and comfortable?

The Lucky Hermit Crab and Her Swirly New Shell is the fourth book in the award winning Seatales Sea Animal Series. Each book in this series is a rhyming adventure with brightly colored illustrations that bring to life authentic tales of what really happens at the edge of the sea. The Lucky Hermit Crab and Her Swirly New Shell is perfect for ages three through ten, but most adults are surprised at how much they learn from reading these stories, too!

Riddle Me This:

How are hermit crabs and children alike?

Answer: They both outgrow things and have to leave them behind.

Sea Anemones and Hermit Crabs: A Special Relationship

Sea anemones and hermit crabs are a great example of creatures that have a mutualistic relationship. (Mutualism is a kind of symbiotic relationship where it’s a win-win for both creatures to be together.) Both the sea anemone and the hermit crab benefit from having each other close by. When a sea anemone is perched on a hermit crab’s shell, the sea anemone’s stinging tentacles keep predators away. Likewise, when the hermit crab eats, the sea anemones can dine on the scraps of food that the hermit crab scatters around it. This is such a special connection that a hermit crab will often move a sea anemone to its new shell when it outgrows its old one.

Hermit Crabs Live in Abandoned Shells

When a hermit crab grows too big for its shell, it will search for a larger, roomier one in which to live. Although a hermit crab has a hard exoskeleton covering the front part of its body and legs, its soft, curly abdomen (sometimes called its tail) needs protection from dangers in its habitat like predators, sharp rocks, and spiny sea creatures it might brush by. A hermit crab usually only leaves its shell to quickly move into a bigger, more comfortable one. Although a hermit crab won’t steal a shell from another hermit crab, it will fight for an empty shell. A scared hermit crab will tuck its whole body inside its shell, leaving its larger claw, or cheliped, to cover the opening of its home. Although a hermit crab prefers to live in an empty shell, it sometimes can be found living in a tin can, a glass bottle, a hollow plant, or a wooden stem when a shell can’t be found.

A Hermit Crab Reluctantly Shares His Lunch

The word “hermit” is defined as a creature who chooses to live alone. But hermit crabs are social animals. As you can see from this quick video, even though other hermit crabs were trying to get his food away from him, the large hermit crab didn’t attack them. He simply brushed them aside. And when another hermit crab managed to tear some of the clam away from the large hermit crab, they both continued eating together. Hermit crabs are often found living together, with smaller ones living in tidepools and larger ones in deeper water.

Reader Reviews:



I LOVED THIS SO MUCH! Such a fun book, love the drawings, the cute fish telling hermit crab facts, the information at the end and the sweet story. Definitely recommended for kids interested in sea creatures. I’m happy that invertebrates are featured more and more in children’s stories, they have been underrepresented for a long time! – Max Willems (Reviewer – NetGalley Review)


Definitely recommend!

“This book was so cute! Loved that the illustrations looked like a TV cartoon and the educational tidbits would be really fun for families that have a pet hermit crab. However even for families that don’t, I think the message about the necessity for change and growth was really beautiful. Would be great for kids going through a transition to better understand the importance of change and why it is a good thing. Definitely recommend!” – Jennifer M. (NetGalley Review)


A gorgeously illustrated educational book:

“As a mother of four kids with ages ranging from 6-12, this book has something for everyone! From the beautiful illustrations, to the cute story that my youngest could read, to the closing pages that give a wonderful educational explanation about these sea creatures that fascinated my 12-year-old, this book is the perfect addition to any library.

It’s packed with little-known information from an author who knows everything about hermit crabs. And as part of an under-water series, it’s a must-have for any child who wants to learn about sea life while being entertained.

A 5-star quality book that your kids will cherish and learn from . . . and you’ll probably discover you’ll learn a new thing or two as well!” – Reader Girl (Amazon)


The animals are sweet and funny, and the story is nice.

“This book tells a story of a hermit crab looking for a new shell. When disaster almost strikes the other ocean animals worry about this hermit crab and his new shell, but when he leaves the shell and moves on a new little hermit crab moves in and finds the perfect shell. The animals are sweet and funny and the story is nice. The font is a bit small but is clear and fairly easy to read. As a grade 3 teacher, I would recommend this book to parents of children in the age 4-6 range.” – Angie K. (Educator: NetGalley review) (PDF review format)