Nancy Knowlton

Dr. Nancy Knowlton is the Sant Chair for Marine Science at the Smithsonian’s National Museum of Natural History and a scientific leader of the Census of Marine Life. She wrote the book, Citizens of the Sea, to celebrate the ten years of the Census. She founded the Center for Marine Biodiversity and Conservation at the Scripps Institution of Oceanography of the University of California, San Diego. Knowlton has devoted her life to studying, celebrating, and striving to protect the multitude of life-forms that call the sea home. She lives with her family in Washington, D.C.

A Tale of Sex and Stress in the Ocean

A coral has just spawned. Each of the hundreds of polyps releases a small pink bundle of sperm and eggs. Credit: Raphael Williams Welcome to Citizens of the Sea , a new blog series where ocean life comes to life. Our book by...

Do Sharks Smell in Stereo?

A scalloped hammerhead shark at Isla del Coco, Costa Rica. Credit: © Terry Goss 2008/Marine Photobank Animals, on land and in the ocean, live in a 3-D world, and they depend on their sense organs and brains to build the...

Peanut Butter and Jellyfish

With more desirable species being fished out and jellyfish blooming, will jellyfish sandwiches soon be on the menu? Credit: David Beck / Jennifer Jacquet All over the world, people have been witnessing gigantic blooms of...

No Fouling Around

Home is where the hull is: Since the dawn of seafaring, humankind has had to deal with pesky creatures, such as barnacles, that “foul” ship hulls and boat propellers like this one. Credit: Flickr User Alison Domzalski (...

Menopausal Moms: A Mammal Mystery

Killer whales ( Orcinus orca ) have something in common with humans: early menopause. Credit: Robert L. Pitman, NOAA Fisheries, USA In honor of Mother's Day, the Citizens of the Sea blog salutes ocean-going mothers...

Devoted Dads: From Seahorses to Sea Spiders

Male leafy seadragons ( Phycodurus eques ) are among the ocean's more " devoted dads ." They carry the developing eggs for about a month, until they hatch. Credit: David Gray, FishWise Professional If youngsters get cared...

The Great Barrier Reef – Going, Going, Gone???

Video of Storms, Starfish Wiped out Half of Great Barrier Reef Coral Australia’s Great Barrier Reef (or the GBR as it is known to reef aficionados) stretches for more than 2,300 kilometers (over 1,429 miles) and can be seen...