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The ocean’s twilight zone teems with life. This little-known part of the ocean—200 to 1,000 meters (660 to 3,300 feet) below the surface—may have more fish biomass than in the…

Research engineer Lee Freitag and colleagues in the WHOI Acoustic Communications Group are developing a longe-range underwater sound-singalling system to warn of possible tsunamis. When a pressure sensor detects a…

The remarkable squidworm was discovered by WHOI scientist Larry Madin and colleagues during a 2007 expedition to explore the deep waters of the Celebes Sea in the Philippines. The squidworm was…

A research team led by WHOI scientists collects samples of groundwater from a well on Enewetak Atoll, one of the tiny Marshall Islands in the Pacific Ocean (from left, WHOI…

This experiment on the seafloor examined whether pumping carbon dioxide to the bottom of the ocean might affect organisms living there. That is one proposed strategy to combat the buildup…

Long metal tubes protrude from the bow and stern of a research boat headed toward a blue hole off Long Island in the Bahamas. Scientists lower the tubes to the…

Scientists have long known that mountain ranges can draw carbon dioxide out of the atmosphere: As rocks are exposed to the air by erosion, minerals chemically react with carbon dioxide…

No pot of gold, but a large colony of king penguins can be found at the end of this rainbow. Breeding pairs and individuals form very large and dense colonies…

A research team works by headlamps to extract sediments from tubes used to core the bottom of Yellowstone Lake. WHOI scientist Rob Sohn, who has explored hydrothermal vents on the…

WHOI senior engineer Matt Heintz speaks with WHOI Trustees and Corporation members about major upgrades to the remotely operated deep-sea vehicle Jason. The $2.4 million upgrades were funded by the National…

Conditions can get a little rough off the coast of North Carolina in January, but that didn’t stop WHOI physical oceanographer Glen Gawarkiewicz and his team. Using an instrument called a…

Biologist Heidi Sosik briefed WHOI volunteers last spring on the new NSF-funded Long-term Ecological Research site that she helped establish off the Northeast U.S. coast. Tonight, Sosik will present at…

Look closely at this rib from a sperm whale found dead on a Nantucket Beach in 2002, and you can see a lesion—pits on the joint surface and a large…

WHOI researcher and engineer Alex Bocconcelli searched for endangered blue whales in southern Chile’s Corcovado Bay this past winter. To track whales’ diving behavior, his team attached temporary suction-cup tags equipped…

WHOI scientist Benjamin Van Mooy (right) and MIT-WHOI Joint Program graduate student Jamie Collins flank the proof-of-concept version of an instrument called PHORCYS. Van Mooy co-developed the device to make…

Whale sharks and other large fish such as rays, tuna, and swordfish roam our oceans, but we know remarkably little about them. That impedes our ability to understand their roles…

To probe the seafloor, scientists send sound waves down through the ocean and seafloor and record reflected echoes with ocean bottom seismographs and hydrophones trailing behind a ship. The time…

The new Northeast Shelf Long-term Ecological Research (NES-LTER) site south of Cape Cod connects two other existing study sites: the Martha’s Vineyard Coastal Observatory and the Ocean Observatories Initiative (OOI)…