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The pre-industrial American landscape was once rightly described as a place where “the deer and the antelope roam.” On land, we take it for granted that the plant-eating deer and antelope far outnumber the...
The majestic and highly predatory red lionfish ( Pterois volitans ) , native to...
by Laura Brodbeck A special type of marine protected area (MPA) called a “no-...
Each month, the Naked Oceans podcast invites a leading marine researcher to...

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Blast fishing, when dynamite or other explosives are used to stun or kill fish, is a practice used in many villages and isolated regions of the world. Hundreds of fish can be seen strewn across the reef, left as bycatch, such as...
How does a coral spend its day? Most of us would say: not doing much. To the...
Sponges are animals that eat tiny food particles as they pump water through...

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Coral reefs are the most diverse of all marine ecosystems. They teem with life, with perhaps one quarter of all ocean...
Nestled among the beautiful coral reefs of Papua New Guinea (PNG) is a place that could provide the key to our understanding of one of the biggest threats to coral reef survival: Ocean Acidification...
A scuba diver explores elkhorn corals ( Acropora palmata ) growing on a tropical reef. Coral reefs provide recreation and inspiration for millions of people every year. Elkhorn coral is listed as...
In the X-ray image of this Viper Moray Eel ( Enchelynassa canina ), note the second set of jaws in the “throat”; these are the gill arches, which are present in all fish. Gill arches support the...
Is it lights out for corals once they have experienced a bleaching event? Not necessarily. This photo shows a coral reef near Bocas del Toro, Panama that is in the process of recovering from a mass...
We have arrived as the advanced scouting party to the scene of this year's field work location: Pemuteran, a small fishing village in northwest Bali. More importantly, we are sitting squarely at the...
Dr. Carole Baldwin , a research zoologist and fish expert with the Smithsonian's National Museum of Natural History, gives viewers an inside-look at the Deep Reef Observation Project (DROP). She and...
Just like other seahorse species, male weedy sea dragons are the ones to get 'pregnant' and give birth to the babies. To show he is ready to hold eggs, the male wrinkles part of his tail. On this...
What is coral bleaching? These white corals in the Gulf of Mexico’s Flower Garden Bank National Marine Sanctuary are bleached due to an increase in water temperatures, which causes corals to lose the...
Each month, the Naked Oceans podcast invites a leading marine researcher to pick the "critter of the month" by asking: if you were a marine organism, which one would you be? This month, Dr. Nancy...
Not all sharks are a dull gray: the coral catshark ( Atelomycterus marmoratus ), for example, is vibrantly colored. These sharks, which reach more than 2 feet long, live among coral reefs, eating...
While bottom trawling—a fishing method that drags a large net with heavy weights across the seafloor—fishermen often catch more than their target fish. Here, they've scooped up a large deep-sea coral...
A coral ( Montastraea faveolata ) has just spawned. Each of the hundreds of polyps living in the colony releases a small pink bundle of sperm and eggs. Read more about coral spawing and watch a...
Syllid fireworms are a part of the Syllidae family , which is a type of polychaete worm. Usually these small worms, not getting much bigger than 13 cm, live on the ocean floor. But when the worms...
I still haven’t gotten beyond the ‘gee whiz’ factor of studying communities of animals in deep-sea coral habitats. Climbing over undersea mountains and along the steep cliffs of submarine canyons...
For those of you who have had the opportunity to visit a coral reef , you know that it’s an experience you are unlikely to forget. Coral reefs are among the world’s most magnificent ecosystems. Their...
This map shows where some of the most significant species of deep-sea corals are located. Learn more about the distribution and ecology of deep ocean corals in the article " Coral Gardens of the Deep...
Healthy coral reefs support a mindboggling array of life. Here, at Rapture Reef in the Northwestern Hawaiian Islands, colorful fishes throng the waters for as far as the eye can see.
Scientists have been studying why populations of crown-of-thorns sea stars ( Acanthaster planci ) have mushroomed in recent decades. Coral reefs can suffer when the sea star's numbers explode because...
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