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Posts Tagged "ocean"

@ScientificAmerican

Whale.FM: Where Citizen Science, Whale Songs and Education Come Together

Above all, science is a collaborative enterprise, where researchers working together can span the continents. Increasingly, nonspecialists—citizen scientists—are pitching in as well. Whale.FM—a collaborative effort of Scientific American, Zooniverse and the research institutions WHOI, TNO, the University of Oxford and SMRU—lets citizen scientists help marine researchers who are studying what whales are saying. (You can [...]

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@ScientificAmerican

Citizen Scientists Study Whale Songs: Years of Work Done in Months

In November 2011, Scientific American, Zooniverse and a team of research partners launched the Web site Whale.FM, a citizen-science project devoted to cataloging the calls made by Pilot whales and Killer whales (Orcas), both of which are actually dolphin species. Different whale families have their own dialects and closely related families share calls. Underwater microphones, [...]

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Expeditions

Arts and crafts day on the Knorr

Yesterday was officially arts and crafts day on the R/V Knorr. We had a very specific project: decorate styrofoam cups. If you’re wondering why, just hold on a minute. First, some pictures of our beautiful cups: Ok, so the reason we each decorated a couple of cups has to do with pressure in the ocean. [...]

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Expeditions

The South Pacific Islands Survey–Destination: The Cook Islands!

I’ve already been nicknamed Jeffery. Now, Jeffery, I should mention, is the ship’s jack-of-all-trades. In 2009 I sailed with him and Algalita to the Pacific Garbage Patch and Captain Dale decided I just might be as helpful as Jeff. Well, I can tell you right now that I don’t know how to repair a broken [...]

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Expeditions

The Catlin Arctic Survey: Thermohaline circulation

If you look at a map of the world and draw a line through London, a latitude of about 50 degrees North and follow this line across the world, you’ll see that it passes through southern Siberia and skims the southern shores of Hudson Bay in Canada. The week before I came out to the [...]

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Expeditions

Measuring iron’s importance to ocean life

rv-atlantis

Editor’s Note: Journalist and crew member Kathryn Eident and scientist Jeremy Jacquot are traveling on board the RV Atlantis on a monthlong voyage to sample and study nitrogen fixation in the eastern tropical Pacific Ocean, among other research projects. This is the fourth blog post detailing this ongoing voyage of discovery for ScientificAmerican.com. RV ATLANTIS [...]

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Expeditions

How do you build an observatory on the ocean floor?

Editor’s Note: University of Southern California geobiologist Katrina Edwards is taking part in a three-week drilling project at the Atlantic’s North Pond—a sediment-filled valley on the ocean floor—designed to locate and study what she calls the “intraterrestrials”: the myriad microbial life-forms living inside Earth’s crust. This post is a response to a question from a [...]

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Guest Blog

How does a floating plastic duckie end up where it does?

In Moby-Duck, Donovan Hohn tracks the fate of 28,800 plastic bath toys (“rubber” ducks, frogs, turtles and beavers) across the northwestern coast to their origins in China and even through the Northwest Passage. But how did these bath toys come to be spread on the shores of Alaska, Washington, Hawaii and Russia? On January 10th [...]

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Guest Blog

A True Duck Hunt: interview with Donovan Hohn

For the author of Moby-Duck, Donovan Hohn, it all started with a school assignment. In 2008, he challenged his journalism class to find the "archaeology of the ordinary." A student, known to be a bit of an odd one, wrote his assignment on his lucky rubber duck. In passing, the student mentioned a newspaper article [...]

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Guest Blog

Overboard: 28,800 toys and one man lost at sea

Few things inspire wonder like seeing something out of its element: Christmas lights on a cactus, a flag on the moon or a yellow rubber duck floating in the middle of the ocean. This incongruity captivates writer Donovan Hohn, who decides to go looking for 28,800 bath toys 13 years after they were lost at [...]

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Guest Blog

Slabs, Sneakers, Gyres and the Grotesque

Book review: ‘Flotsametrics and the Floating World: How one man’s obsession with runaway sneakers and rubber ducks revolutionized ocean science’ by Curtis Ebbesmeyer and Eric Scigliano, Collins hardcover edition, 2009: ISBN 978-0-06-155841-2, HarperCollins paperback edition, 2010: ISBN 978-0-06-155842-9 With a touch of whimsy, tales of the grotesque, and the barest hints of essential mathematics, Dr. [...]

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Guest Blog

Now in 3-D: The shape of krill and fish schools

Watching videos of fish feeding frenzies is a very emotional experience for me. You know the videos I’m talking about (personal favorites here, 0:55 in, and here). They feature a swirling, glittering mass of fish that seems to dance and flit as a single entity while being torn apart by three or four types of [...]

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Observations

Complex Brains Existed 520 Million Years Ago in Cockroach Relative

insect brain evolution 520 million years arthropod fossil

Your everyday cockroach might not seem terribly intelligent. But new fossil evidence from 520 million years ago suggests that this insidious insect might have had some surprisingly smart early ancestors. Cockroaches and other insects belong to a group called the arthropods, which arose some 540 million years ago. A new Chinese fossil is yielding new [...]

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Observations

How Would Fish Vote in the 2012 Election?

http://creativecommons.org/licenses/by/2.0/deed.en

This week’s look at the ScienceDebate answers provided by Gov. Mitt Romney and President Barack Obama focuses on their replies to a question about the health of our oceans and coastlines. Two areas in particular—declining fisheries and pollution—were highlighted for special consideration. Of course, the oceans also play a major role in driving weather systems [...]

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Observations

Oyster Genome Pries Open Mollusk Evolutionary Shell

oyster genome sequence

The world of the mollusk genome is now our oyster, as researchers have now sequenced the genetic code of this hearty (and delicious) shellfish, revealing it to be even more complex and adaptable than previously imagined. The new genome provides insights how oysters manage to cope with a dynamic habitat and how they build their [...]

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Observations

50 Shades of Sea Slug Sex: It’s Stranger Than You Think

sea slug sex traumatic mating female

Two-part barbed penises, a physical struggle and 20 minutes of penetration. That’s how some sea slugs do it. But the real shocker is that, for one species at least, those in the female role seem to engage in these bizarre, violent sexual encounters more often than might be biologically necessary. Nothing about sea-slug sex sounds [...]

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Observations

This Psychedelic Shrimp Will Get You Hammered [Video]

peacock mantis shrimp hammer club

The psychedelic-looking peacock mantis shrimp (Odontodactylus scyllarus) has a decidedly non-peacenik way of getting a meal: clubbing it. This small (3 to 18-centimeter-long), solitary stomatopod wields two dastardly hammer-like appendages. At just 5 millimeters wide, each dactyl club can generate a force of 500 Newtons. That’s enough punch to shatter the glass of a standard [...]

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Observations

Millennia-Old Microbes Found Alive in Deep-Ocean Muck

mud-core

A sparse community of microbes can persist for eons in the clay beneath the deep blue sea. When scientists drilled into the Pacific Ocean bottom and pulled up a long core of clay, they also pulled up microbes living on so little that it was hard for the scientists to tell if they were alive [...]

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Observations

5-Armed Brittle Stars Always Face Front [Video]

brittle star

How would you walk if you had five arms and no brains? If you’re a brittle star, the answer turns out to be quite well (for an echinoderm)—although it’s a little complicated. The blunt-spined brittle star (Ophiocoma echinata) looks like a claymation creature from an alien horror movie as it moves its disk-like body along [...]

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Observations

A Bike That Uses Its Brakes for a Speed Boost (and Other Student Engineer Inventions) [Video]

flywheel, bicycle,energy

For more than 150 years New York City’s Cooper Union for the Advancement of Science and Art (more commonly called The Cooper Union) has finished its school years with an annual event  showcasing student projects in the areas of art, architecture and engineering. Of the more than 300 projects on display this year were several [...]

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Octopus Chronicles

Unusual Offshore Octopods: The See-Through “Glass” Octopus [Video]

glass octopus

Octopuses that live in the deep open ocean are difficult enough to find. But try locating a “glass” octopus, which is nearly transparent. Floating in the dim midwaters, this gelatinous octopod looks almost like a be-suckered jellyfish. Rather than camouflaging like most known octopus species, the Vitreledonella richardi has taken this alternative approach to hide [...]

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Octopus Chronicles

Unusual Offshore Octopods: More (Octopus) Suckers Born Every Minute in Cold Water

deep sea octopus sucker count Jordan

That octopuses can survive in the extreme, sunless environments around deep hydrothermal vents is surprising enough. But comparing octopuses that make their homes there has led to some even more interesting discoveries about animal development. The rarely seen Muusoctopus hydrothermalis live some 2,495 to 2,620 meters below the surface, along the East Pacific Rise. There, [...]

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Octopus Chronicles

Unusual Offshore Octopods: The “Dumbo” Octopus Swims with Fins [Video]

dumbo octopus

Down in the dark depths of the deep ocean live more than a dozen species of “Dumbo” octopuses. These octopods from the genus Grimpoteuthis are so named for their prominent, unusual earlike fins that they use to help them swim (reminiscent of the Disney elephant character who used his ears to fly). These graceful, gelatinous [...]

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Octopus Chronicles

Unusual Offshore Octopods: Does the World’s Largest Octopus Only Have 7 Arms? [Video]

seven-armed octopus biggest octopus

Today we’re returning to the deep to meet an octopus that, at first glance, hardly seems to earn that eight-limbed designation. Its very name sounds like an oxymoron—or a cautionary tale from a fishing accident. But the seven-armed octopus (Haliphron atlanticus) is a real, bonafide octopod—if a little misleading in its appellation. This deep-ocean octopus [...]

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Octopus Chronicles

Female Octopus Arms Reach Farther, Robot Research Group Finds [Video]

octopus female arm stretch

Almost as fast as you can say “go-go-gadget arm,” an octopus can stretch its arm more than twice its normal length—without the help of any cyborg attachments. What’s more, according to new research, female common octopuses (Octopus vulgaris) are able to stretch their arms even more than the males—on average, three times resting length. This [...]

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Octopus Chronicles

Unusual Offshore Octopods: The Weapon-Wielding Blanket Octopus [Video]

blanket octopus

We continue our exploration of the many mysterious octopuses that live far from shore—and the eyes of humans. Today we meet the blanket octopus (Tremoctopus), a genus with four species that, until recently, had only been described based on female specimens. Why? Although they live in the vast open ocean, they are big (up to [...]

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Octopus Chronicles

Unusual Octopods: A Flapjack Devilfish Octopus [Video]

flapjack devilfish octopus Opisthoteuthis californiana

The many octopus species that live beyond the reach of vacationing snorkelers, scuba diving researchers and even near-shore commercial fisheries are relative unknowns compared with the more familiar shallow-water species. But that doesn’t mean that they are not of great importance to science—and the ocean’s intricate food web. Last time we met the super-fecund cephalopod [...]

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Octopus Chronicles

Unusual Octopods Elude Science: The Case of the Football Octopus

rare football octopus

Shallow-water octopuses can be difficult enough to find. They camouflage against corals, hide in holes and generally make themselves scarce. But researchers can at least attempt to observe and collect them by snorkeling, diving or skimming nets and bottom trawls. The rest of the vast, dark ocean, however, presents a much larger sampling challenge. So [...]

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Octopus Chronicles

Mimic Octopus Makes Home on Great Barrier Reef

mimic octopus australia great barrier reef

Of all the amazing octopus species out there, the mimic octopus, Thaumoctopus mimicus, is perhaps the most bewildering. While most known octopuses are able to change color and shape for camouflage, mimic octopuses can also impersonate other animals to deter would-be predators. They can contort their bodies and long, striped arms to look—and swim—like other [...]

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Octopus Chronicles

Octopuses Get One Chance at Love [Video]

giant pacific octopus love date mating

The octopus is a solitary creature. Most known species of octopus avoid the company their own kind. And you might, too, if you knew your conspecific were capable of cannibalism. So in public aquariums, these animals are usually kept in separate tanks to keep them safe (and to avoid any unsightly encounters in front of [...]

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PsiVid

“It’s so FLUFFEEE!”: Otter 501, A must-see movie!

OTTER-501-FINAL_low-res-FOR-web2-202x300

This enthusiastic movie line, lifted from the kids film, “Despicable Me“, about an evil villian whose heart is warmed by a trio of young girls who come into his life, is a very appropriate introduction to a movie that animal lovers simply must take time out to see . If you are along the west [...]

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Running Ponies

Pyura chilensis: the closest thing to getting blood from a stone

“Period Rock? You’re calling me Period Rock now? Guys, seriously, I might look like a stone, but that doesn’t mean I have the heart of one. Why doesn’t anyone ever just call me Michael?” **** Despite appearances, this is not some kind of cruelly bisected alien stone organism or a tomato thunderegg. This is Pyura [...]

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Symbiartic

SciArt of the Day: The Great Architeuthis

12-028FEATURE

From: Louis Figuier, The Ocean World: Being a description of the sea and some of its inhabitants, 1872. Perusing the stacks in the University of Chicago’s Crerar Library one day, I found this gem of a book – a richly illustrated account of sea creatures from 1872 by a naturalist named Louis Figuier. In it [...]

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