OLogy

What's the Big Idea About Marine Biology?

There are so many ways and places to live in the oceans. Discover its wonders and importance.

It Takes All Kinds to Make a World

The ocean's one diverse place. Take the surfboard challenge, and ride the waves of biodiversity!

Be an Ocean Helper

Find out what you can do to protect the oceans and ocean life.

What's This?

Can you tell the difference between a leech's jaw and its back sucker? Test your knowledge of these blood-thirsty worms.

Create a Coral Reef

Make a 3D diorama! All you need are pasta, Play-Doh, pipe cleaners, pom-poms, and hair curlers.

Dive Into Worlds Within the Sea

Find out what lives in the deep sea, coral reef, and continental shelf?

Journey to the Bottom of the Sea

Can you make it down to the ocean floor? Along the way, discover what makes water special.

Make Your Own Marine Biology Stationery

Send a note to a friend with these watery letterheads.

Meet the Marine BiOLogists

Dive into the oceans with Melanie, Gabriela, Gwyneth, and Luke.

Ocean Books

Dive into the oceans with these 12 books.

Tide Poll

Make your opinion count!

Rubber Blubber Gloves

How do whales and walruses stay warm in chilly waters? Grab some gloves and find out.

Test Density with a Supersaturated Solution

Do freshwater and saltwater mix? Find out in this experiement.

What Do You Know About Marine Biology?

Test your knowledge about our watery world with this quiz.

Ask a Scientist

Museum scientists answer kids' questions about the environment.

Creatures of the Reef

See how a scientist studies mollusks in the tropical waters of the Bahamas.

Journey to Deep Sea Vents

All aboard! Hop on a submersible and explore an amazing diversity of life at the ocean floor.

Humpback Whale Journal

Join scientist Howard Rosenbaum on a journey to Madagascar where you'll meet a species of whales with fingerprint-like tails.

Pacu Journal

Join scientist Daniela Calcagnotto in South America and meet this vegetarian relative of the meat-eating piranha.

Be a Water Saver

How do we make sure there is enough clean, fresh water to share with all living things? These are some simple things that you can do to help protect fresh water and the living things that depend on it.