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The Ocean Blog

When most people think of iconic American landscapes, we think of places on land. Yellowstone, the Great Smoky Mountains, the Grand Canyon—these national parks are household names. But many Americans...
Adult green sea turtles ( Chelonia mydas ) spend most of their time grazing in seagrass meadows. It's estimated that before Columbus arrived in America in 1492, the number of green turtles supported...
In 1872, the United States did something remarkable. We set aside one of our greatest natural treasures, Yellowstone National Park , for future generations to enjoy and appreciate. The logic was...
Smithsonian Marine Science Network Postdoctoral Fellow, Seabird McKeon, returns from the Smithsonian field site in Belize. Together with Dan Barshis of Stanford University, Seabird reports on the...
What can students do to help the ocean? It turns out, a lot! These students from New Jersey are among dozens from the U.S. and Mexico who are developing action plans on ocean and climate-related...
From the water, red mangroves appear to form an impenetrable tangle of roots, trunks, and leaves—a protective barrier against storms and tsunamis. More about mangroves can be found in our Mangroves...
Hardy head silversides ( Atherinomorus lacunosus ) are abundant fish in shallow water seagrass meadows throughout the Indo-Pacific that often form shoals. They feed primarily on zooplankton and small...
The grasses and animals living in marshes help to filter water and stabilize shorelines, along with providing habitat for a variety of mammals, fish, shellfish and amphibians and a haven for...
Sandy beaches are home to a Diversity of Life In the Shores and Shallows Gallery of the Smithsonian's Sant Ocean Hall , a beach display features magnified grains of sand and the tiny beach critters...
Around 100 million years ago, grass from land adapted to live and reproduce while submerged in seawater—the modern-day seagrasses. This sea invasion by land plants happened four separate times,...
This creek lined with mangroves is located near the Smithsonian Institution’s field station in Bocas del Toro , Panama. The tangled roots support an amazing array of life. Learn m ore about mangroves...
Giant anemone. More about mangrove ecosystems can be found in the Mangroves section .
The sun sets over marshland near Ocean City, N.J.
When most people think of catfish, they think of a freshwater fish. But the striped eel catfish ( Plotosus lineatus ) is found in marine systems including coral reefs, estuaries, tide pools and other...
Large numbers of grey reef sharks ( Carcharhinus amblyrhynchos ) were observed at Jarvis Island, an uninhabited Pacific island, during the 2010 Pacific RAMP expedition of the NOAA Ship Hi'ialakai ...
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