video

Penguins: Popularity, Peril and Poop

Penguins are odd birds. For one, they cannot fly (but they are amazing swimmers),...

video

Climate Change and the Chesapeake Bay

Students are working with the National Aquarium in Baltimore, Md., to develop an...

overview

Jellyfish and Comb Jellies

Jellyfish and comb jellies are gelatinous animals that drift through the ocean's...

Personal Perspectives

Microbes Help Corals Pick a Home and Settle Down

Bacteria are everywhere in the ocean. They live in the water, on virtually every...

Article

Taking the Temperature of the Kemp's Ridley Sea Turtle

The Kemp’s ridley is a “riddler” among sea turtles. Although the species was...

Personal Perspectives

Watching for Fish in the Puffin's Beak

In recent years, I have taken to watching flying fish along the Maine coast. Not...

Personal Perspectives

The Design of a Beautiful Weapon

This summer, many of you have likely enjoyed feasting on crabs, be they blue,...

video

Claws Out: Fiddler Crabs Do Battle

Male fiddler crabs each have a single super-sized claw that they use as a weapon to...

Article

The Great Hermit Crab Migration

Over the last few days, a video of hermit crabs stampeding across the rocky shores...

Personal Perspectives

Menopausal Moms: A Mammal Mystery

In honor of Mother's Day, the Citizens of the Sea blog salutes ocean-going mothers...

Personal Perspectives

A Tale of Sex and Stress in the Ocean

Welcome to Citizens of the Sea, a new blog series where ocean life comes to life....

Article

Why a Tusk? The real-life unicorns of the sea and the tusks that make them famous

In the frigid Arctic Ocean, a mysterious toothed whale—the narwhal— resides...