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Photo
Parrotfish in Mucus Cocoon
A parrotfish (Chlorurus sordidus) creates a mucus cocoon to protect it from...
Photo
Isopod Engorged With Blood
Isopods (small, shrimp-like animals) like this one (Gnathia aureusmaculosa) are the...
Photo
Hostile Takeovers: Photo Spread from Citizens of the Sea
"Hostile Takeovers" spread from Citizens of the Sea by Nancy Knowlton. ...
Photo
Devoted Dads: Photo Spread from Citizens of the Sea
"Devoted Dads" spread from Citizens of the Sea by Nancy Knowlton. ...
Photo
Open Wide: Photo Spread from Citizens of the Sea
"Open Wide" spread from Citizens of the Sea by Nancy Knowlton. ...
Article
Where the Shark and the Snapper Roam
The pre-industrial American landscape was once rightly described as a place where...
March 2014

Citizens of the Sea
The incredible variety of marine life—in numbers, body form, behavior, and...
July 2010

Photo
Citizens of the Sea Cover
The cover of Dr. Nancy Knowlton's new book, Citizens of the Sea, published in...
video
From Despair to Repair
Sit down with two veteran marine scientists, Dr. Nancy Knowlton and Dr. Jeremy...
Tue, 07/01/2014 - 12:59

Article
Devoted Dads: From Seahorses to Sea Spiders
If youngsters get cared for at all, the mother is usually involved. But in fish and...
June 2011

Personal Perspectives
Menopausal Moms: A Mammal Mystery
In honor of Mother's Day, the Citizens of the Sea blog salutes ocean-going mothers...
May 2011

Personal Perspectives
No Fouling Around
Since the dawn of seafaring, humankind has had to deal with the pesky creatures...
December 2010