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Algae, like all organisms, normally grow in balance with their ecosystems, limited by the amount of nutrients in the water. But sometimes, certain species of algae reproduce so rapidly that they cause damage. In...
Bycatch, the name given to fish and other ocean animals that are caught...
Sea turtles may have survived the planetary changes that killed the dinosaurs,...
If there had been room to stand up, there would have been a standing ovation...

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The spiral-tufted bryozoan ( Bugula neritina ) is being studied for a potential Alzheimer's disease and cancer drug -- but it's not the bryozoan that makes the chemical. The chemical, found in the bryozoan's tissues, is produced...
These cancer cells have been treated with discodermolide, a chemical...
An estimated 1.8 billion people will suffer from water scarcity by 2025...

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Take a tour of the Alvin, a three-person submersible that allows scientists to explore the depths of the ocean. This is an...

The Ocean Blog

About DROP DROP is a multidisciplinary Smithsonian project exploring the diversity of tropical deep reefs off the coast of Curaçao in the southern Caribbean. Deep reefs are natural extensions of...
Ice divers Katrin Iken (left) and Elizabeth Siddon are about to descend through a hole in the Arctic ice and into the frigid world below.
Sponsored by the United Nations, the Global Ocean Observing System is committed to sharing observations about the ocean to all nations. Some of the data they collect comes from buoys like the one...
Scientists met the robotic glider Scarlet Knight about halfway along its journey of scientific exploration from the United States to Spain, discovering that barnacles were growing on the glider’s...
Last week, Smithsonian research zoologists Dr. Jerry Harasewych and Dr. Martha Nizinski were in Curaçao looking for deep-sea marine gastropods and decapod crustaceans , respectively. I learned they...
The sea's largest fish has been a mystery until recent decades. Thanks to electronic tags, researchers are uncovering some of the secrets of the whale shark ( Rhincodon typus Smith, 1828 ). One...
Hidden beneath Arctic ice is a world few have ever seen. Take the icy plunge with a team of ice-loving scientists.
The world beneath the Arctic ice is magical, but cold. Divers have to tolerate temperatures of 30 degrees Fahrenheit (about -2° Celsius.) To stay warm they wear thermal undergarments and use special...
Researchers use Autonomous Reef Monitoring Structures (ARMS) like this one to study the diversity of coral reef organisms. They leave the structures underwater for about a year. Then they retrieve...
Dr. Clyde Roper prepares to dive thousands of feet to a giant squid habitat off the coast of New Zealand in a one-person submersible. More about the giant squid can be found in our Giant Squid...
Algae, like all organisms, normally grow in balance with their ecosystems, limited by the amount of nutrients in the water. But sometimes, certain species of algae reproduce so rapidly that they...
Submarine pilot Bruce Brandt secures ARMS (Autonomous Reef Monitoring Structures) to the submersible Curasub off the coast of Curacao. In shallow water, SCUBA divers can place these biodiversity-...
The Hawaii Undersea Research Laboratory’s Pisces V submersible is lowered for a dive to study deep-sea corals. Learn more about research into deep-sea corals in the multimedia feature " Coral Gardens...
The Autonomous Underwater Vehicle (AUV) SeaBed, shown here as it is about to be deployed, has been used to survey deep-sea fishes and coral habitats. Learn more about how underwater vehicles study...
In 2012, the long-elusive giant squid was finally filmed live in its natural habitat. The squid was found by placing glowing lures outside of a submersible to mimic jellyfish, which typically...
Scientists aboard the MV Hanse Explorer have to fit a lot of scientific equipment in a small space! Read about it here .
Scientists talk about the experience of exploring the ocean in this excerpt from the Deep Ocean Explorers video. More about deep ocean exploration can be found in our Deep Ocean Exploration featured...
How do we know where ocean animals swim day and night? Scientists are getting snapshots into the daily lives of whales , sharks , and even fish by tagging the animals to track their movements. You’ve...
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