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Octocorals dominated the seafloor on Chris Mah's Okeanos mission to Johnston Atoll in the remote Pacific Ocean.
Personal Perspectives

Deep-sea octocorals: An ecosystem of their own

The deep-sea is a vast part of the world’s ocean. Even today, it often surprises...
October 2017
Two new species of sea stars were discovered in the deep sea: Paulasterias tyleri (on the left) in a North Pacific hydrothermal vent community, and Paulasterias mcclaini (on the right) in the deep sea off the coast of Antarctica.
Personal Perspectives

The Discovery of Two Extreme Sea Stars

Recently, Smithsonian National Museum of Natural History researcher Chris Mah and...
May 2015
A diver clears the bottom of a cargo ship of specimens.
Personal Perspectives

Unearthing Information About Invasives From the Bottom of a Cargo Ship

I am once again leaving my familiar world behind and descending into the abyss...
February 2015
Positioned in front of a natural oil seep, this video camera is capturing images of the black oil bubbling up from beneath the sea floor. A light mounted to the frame helps see what is happening in the dark on the sea floor.
Personal Perspectives

How Oil Feeds the Deep Sea

There can be catastrophic results when a large amount of oil is spilled into the...
November 2014
Brian Skerry sits on a 20 foot high underwater tripod to photograph the Aquarius Habitat off Florida.
Personal Perspectives

Portraits of Planet Ocean – Behind The Photographs

As an assignment photographer, I sometimes feel as though I am living in a vacuum,...
September 2013
Seagrasses are flowering plants that can form dense underwater meadows and are an important shallow water habitat.
Personal Perspectives

How Coastal Seagrass Feeds the Deep

It is a well-known fact that for animals living in the deep sea, food can be...
February 2013
The Curasub departs for a deep sea dive, up to 1,000 feet off the island of Curaçao, where this sub is located.
Personal Perspectives

A Voyage of Discovery to Inner Space

The Mars rover Curiosity is sending images back home: glimpses of another world...
August 2012
Dive through the zones of the ocean to the deep ocean bottom where many strange species live, and there are many yet to be discovered. Explore them in the Deep Ocean Exploration section.
Personal Perspectives

What We DON'T Know About the Deep Sea

Imagine: You’re in a small submersible, and you gently settle on the soft muddy...
July 2012
Gabor Szathmary secures one of the plaster jackets containing a fossil "toothed" mysticete that was excavated on Vancouver Island.
Personal Perspectives

Whale fossils on the mainland, and into a CT scanner

After a few long days of hard work on the island, we were finally able to excavate...
May 2012
Two scientists peer out into the ocean from inside the Curasub, a 5-person submersible
Personal Perspectives

Diving for Crabs in the Deep Sea

Last week, Smithsonian research zoologists Dr. Jerry Harasewych and Dr. Martha...
July 2011
A photo of a sea toad specimen.
Personal Perspectives

A Sub and a Sea Toad

Have you ever seen a creature so unusual?  This fish (22 cm long) is called a...
July 2011
A landscape photo of a shoreline with tall grass-like plants lining the water's edge.
Personal Perspectives

Make Me Care About: Phragmites

This week at the Smithsonian Ocean Portal we embark on an experiment we're calling...
March 2011
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