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When snorkeling in the Kahekili Herbivore Fisheries Management Area (KHFMA) in West Maui, I keep an eye out for certain kinds of fish. Not the brightest or the biggest, but those herbivores such as...
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When we think "Africa," we think of the "Big Five"—lions, elephants, leopards,...
In the dark, cold waters 600 meters (nearly 2000 feet) below the ocean's...
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The pre-industrial American landscape was once rightly described as a place...

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The long barbel on the chin of this dragonfish ( Stomias boa ) has a glowing tip that may attract prey. With its large mouth and sharp, curved teeth, the fish makes quick work of any prey that venture too close. Scaly dragonfish...
This deep sea creature, the whalefish ( Cetomimidae ), has a whale-like body...
A yellow moray eel, Gymnothorax prasinus , inside of a sea sponge in the...

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By Lindsay Aylesworth, Project Seahorse The day I stepped into my wetsuit, donned my mask, and embarked on my first scuba...

The Ocean Blog

The fish at left stands out against the lighter waters above. At right the same fish—now with bioluminescent structures on its underside lit—blends in. Many deep sea creatures have evolved this...
In the dark, cold waters 600 meters (nearly 2000 feet) below the ocean's surface, things happen slowly. Orange roughy ( Hoplostethus atlanticus ) , deep ocean fish that were once known as "slimeheads...
This offshore cage is stocked with 70,000 Pacific threadfin ( Polydactylus sexfilis ), or moi. Aquaculture can provide a sustainable way to satisfy the demand for this Hawaiian delicacy, once...
From parrotfish that cover themselves in a blanket of their own mucus to tiny pygmy sea horses, there are some bizarre sea creatures that live in coral reefs . In this slideshow you can explore some...
The long toothy rostrum or “saw” gives sawfish their common name. They use the saw to dig in the sand for crustaceans or to attack prey by vigorously slashing from side to side. This smalltooth...
The rich colors of emperor angelfish make them a vibrant version of royalty. They are curious fish that will come and greet their human visitors. However this unique coloring is not shared with all...
This fish belongs to a group of anglerfishes known as lophiiformes . This species, along with other anglerfishes, has a modified dorsal-fin spine, usually on the tip of the snout, which serves as a...
The majestic and highly predatory red lionfish ( Pterois volitans ) , native to the Indo-Pacific, is invading Atlantic waters. The lionfish is a popular home aquarium species, and some were most...
When we think "Africa," we think of the "Big Five"—lions, elephants, leopards, buffalo and rhinos—that crisscross the African Savannah. Few would imagine that there could be more natural beauty on...
Worldwide, fisheries touch our lives in countless ways. If well maintained, they can feed millions of people, generate jobs and income, help maintain long-standing community and cultural traditions,...
The larger fish in this picture are called sweetlips ( Plectorhinchus ) because of their big, fleshy lips. There are over thirty species of sweetlips, which tend to live on coral reefs in small...
For centuries, the Baltic Sea has provided European flounder ( Platichthys flesus ) and other fish for millions of people. Since the early 1980s, the nations surrounding the sea have coordinated...
CREDIT: Wikimedia User “Fisherman” Because of consumer demand for sashimi (a fresh raw seafood dish), the fishing pressure on Atlantic bluefin tuna is extraordinarily high. The sale of a single...
Using genetic analysis combined with traditional study of morphology, Smithsonian scientist Dr. Carole Baldwin and her team discovered that what were thought to be three species of the fish are...
Scientists at the Smithsonian and partnering organizations have discovered a remarkably primitive eel in a fringing reef off the coast of the Republic of Palau . This fish exhibits many primitive...
Red Pigfish ( Bodianus unimaculatus ) and Blue Mao-Mao ( Scorpis violacea ) school at the edge of a cavern in New Zealand's Poor Knights Islands. Read photographer Brian Skerry's story behind this...
Under white light, this shortnose greeneye fish ( Chlorophthalmus agassizi ) looks unimpressive. But, in dim blue light—the type usually seen at depth—it shows its true fluorescent colors. NOAA...
Smithsonian researchers collected a cave basslet ( Liopropoma mowbrayi ) from the deep reefs of Curaçao , in the southern Caribbean. They used a state-of-the-art submersible to obtain the specimen...
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