About Mary


Friends of Casco BayExploring the ocean through children’s literature…from microscopic plankton to giant squid

Inquire about Author visits that combine science and literacy at mcerullo@maine.rr.com.

So excited with the response to our book series “Shark Expedition” with underwater photographer Jeff Rotman.

Hope you can find your favorite shark among these five books:

Shark Expedition: A Shark Photographer’s Close Encounters

Searching for Great White Sharks: A Shark Photographer’s Quest for Mr. Big

Sharks of the Deep: A Shark Photographer’s Search for Sharks at the Bottom of the Sea

Seeking Giant Sharks: A Shark Photographer’s Quest for Whale Sharks, Basking Sharks, and Manta Rays

Journey to Shark Island: A Shark Photographer’s Close Encounters

I hope you like them!

How I began:
I wandered into writing on my way to becoming a scientist.

When I was 13, my parents’ friends would ask, “What are you going to be when you grow up?” I thought, Nurse? Meteorologist? Oceanologist? It took me a year before I realized that it was an oceanographer that I wanted to become, but by then I was hooked. I went all through high school and college with the intent of studying oceanography.

After graduating college, I needed a break from studying. I got my first “grown-up” job at the New England Aquarium in Boston. It was there that I realized I wasn’t going to be a scientist. Instead, I found liked learning a little about this and a little about that. So I turned to teaching and writing. Now I am a “science translator.” This career allows my curiosity to take me in many different directions as I continue to learn about and share my passion for the ocean.

I most enjoy getting to meet the scientists, divers, and underwater explorers I interview for my books. In doing my research, I’ve had a few undersea adventures of my own: swimming with 10 Caribbean reef sharks, diving on a sunken ship, and spending a week in total immersion with bottlenose dolphins.

My day job as associate director of Friends of Casco Bay, in South Portland, Maine, allows me to work to help protect the environmental health of my hometown ocean.

Right now, I am working on updating my Sea Soup books because there is so much new information about these tiny plants and animals that are the basis of life in the ocean.

Jeff Rotman and I also are working on new book projects, and I welcome your suggestions for other ones! If you have a good idea, please email me at mcerullo@maine.rr.com!

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