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☆ Scientists identify ‘degrees of Kevin Bacon’ gene
▼ + stars: | 2024-05-02 | by ( Katie Hunt | ) edition.cnn.com time to read: +6 min

Even humble fruit flies organize themselves into regularly spaced clusters, researchers have found. Within those social networks, certain individuals will often stand out as “gatekeepers,” playing an important role for cohesion and communication within that group. New research published Tuesday in the journal Nature Communications has identified a gene responsible for regulating the structure of social networks in fruit flies. The study opened up new opportunities for exploring the molecular evolution of social networks and collective behavior in other animals. FLPA/ShutterstockThe gene behind fruit fly social networksThe researchers investigated a number of gene candidates in fruit flies, a common lab organism used in the study of genetics.

Persons: ”, Kevin Bacon, Bacon, Joel Levine, Rebecca Rooke, ” Levine, Levine, “, ” Allen J, Moore, wasn’t, ” Moore Organizations: CNN, Nature Communications, University of Toronto, University of Georgia’s Locations: Philadelphia, University of Toronto Mississauga

☆ Google DeepMind wants to make AI a part of soccer
▼ + stars: | 2024-04-13 | by ( George Glover | ) www.businessinsider.com time to read: +6 min

Google DeepMind launched a prototype AI soccer tactics tool last month. DeepMind developed the tool with Liverpool FC, known for its data-driven approach to soccer. AdvertisementGoogle DeepMind is bidding to bring artificial intelligence (AI) into soccer by launching a new tool to help coaches make better tactical decisions. DeepMind researchers published their findings in the scientific journal Nature Communications. Google DeepMindHaving that knowledge on hand helped the collaboration between DeepMind and Liverpool to run smoothly, according to Veličković.

Persons: Google DeepMind, DeepMind, —, Zhe Wang, Didier Drogba, Divock, Chelsea's Didier Drogba, Ian MacNicol, Petar Veličković, Billy Beane, Ian Graham, they've, Liverpool —, Monterrey's Sergio Canales, Yuri Cortez, We're, Wang, it'll Organizations: Google, Liverpool FC, Service, English Premier League soccer, Nature Communications, Soccer, Former Ivory Coast, Chelsea, Liverpool, FC Barcelona, UEFA, Boston Red Sox, Fenway Sports Group, Liverpool FC's, Ph.D.s, Harvard, Inter Miami, Getty Locations: London, Cambridge, Anfield, DeepMind, Liverpool, AFP

☆ The upcoming solar eclipse will cause shallow, cumulus clouds to disappear. Researchers explain why
▼ + stars: | 2024-03-30 | by ( Ayurella Horn-Muller | ) edition.cnn.com time to read: +11 min

That’s at least what scientists expect to take place in swaths of Mexico, Canada and the United States during April 8’s total solar eclipse. They discovered that cumulus clouds dissipate during eclipses because of the relationship between solar radiation and the formation processes of the clouds. Shallow cumulus clouds, in particular, serve a critical function. But what exactly shallow cumulus clouds’ role is when it comes to the rapidly warming climate remains a long-standing subject of uncertainty in the scientific community. De Roode hopes those across North America gearing up for the next solar eclipse remember to keep an eye out for any vanishing low-lying cumulus clouds.

Persons: CNN —, ”, Victor Trees, Jake Gristey, Gristey, “, Kevin Knupp, Knupp, Stephan de Roode, de Roode, ” de Roode, ’ Gristey, De Roode, Ayurella, Muller Organizations: CNN, Environment, geoscience, Delft University of Technology, cumulus, Cooperative Institute for Research, Environmental Sciences, University of Colorado Boulder, University of Alabama, Climate Locations: Mexico, Canada, United States, Netherlands, Africa, Huntsville, North America, Axios

☆ Do you have seasonal allergies? Here’s how to find out and what to do
▼ + stars: | 2024-03-27 | by ( Katia Hetter | ) edition.cnn.com time to read: +8 min

More than 1 in 4 adults and nearly 1 in 5 children have seasonal allergies, according to the US Centers for Disease Control and Prevention. Are there other substances that can cause seasonal allergies? CNN: Are there other substances that can cause seasonal allergies? These are not seasonal allergies, as they aren’t related to environmental exposures and can happen year-round. There are many online resources for reducing allergens in your home that can help to decrease the impact of seasonal allergies.

Persons: CNN —, Leana Wen, It’s, I’ve Organizations: CNN, Northern, US Centers for Disease Control, Nature Communications, George Washington University, CDC

☆ Mars could be creating 'giant whirlpools' deep within our planet's oceans
▼ + stars: | 2024-03-13 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +5 min

Mars may be 140 million miles away, but its gravitational pull could be impacting Earth's oceans. Scientists at the University of Sydney in Australia believe the red planet's tug is creating "giant whirlpools" in the oceans called eddies, which can shift the deep-sea floor. This, they claim, is part of a 2.4-million-year climate "grand cycle" on Earth that has been ongoing for at least 40 million years. The red planet's orbit and ours are locked in an intricate dance, and every so often, these line up so that Mars' gravitational pull on Earth is just a little more intense — this is called resonance. This information is crucial when refining models helping us see how our planet's intricate climate will progress over time.

Persons: Adriana Dutkiewicz, NASA's, Dietmar Müller, Malin, Matthew England, Benjamin Mills, wasn't, Mills Organizations: Service, University of Sydney, Business, NASA's Goddard Space, geosciences, Nature Communications, Mars NASA, JPL, Systems, University of New, New, University of Leeds Locations: Australia, Japan, New, University of New South Wales, Sydney

☆ For Some Mammals, Large Adult Daughters, Not Sons, Are the Norm
▼ + stars: | 2024-03-12 | by ( Emily Anthes | ) www.nytimes.com time to read: +1 min

Female elephant seals are not delicate creatures. Still, female elephant seals are absolutely dwarfed by their male counterparts, which are typically at least three times heavier. A new analysis of a diverse array of more than 400 mammalian species paints a more complex picture. Males outweigh females in 45 percent of mammalian species, scientists found. And in 16 percent of species, females are the heavier sex.

Persons: ”, Kaia Tombak Organizations: Purdue University, Nature Communications

☆ Mars could be driving ‘giant whirlpools’ in the Earth’s deep oceans, new study finds
▼ + stars: | 2024-03-12 | by ( Laura Paddison | ) edition.cnn.com time to read: +5 min

CNN —Mars may be around 140 million miles away from Earth, but the red planet is influencing our deep oceans by helping drive “giant whirlpools,” according to new research. The sediments revealed that deep-sea currents weakened and strengthened over 2.4 million-year climate cycles, according to the study published Tuesday in the journal Nature Communications. For the Earth, this interaction with Mars translates to periods of increased solar energy — meaning a warmer climate — and these warmer cycles correlate with more vigorous ocean currents, the report found. The authors describe these currents, or eddies, as “giant whirlpools” that can reach the bottom of the deep ocean, eroding the seafloor and causing large accumulations of sediments, like snowdrifts. Deep-sea sediments build in continuous layers during calm conditions but strong ocean currents disrupt this, leaving a visible stamp of their existence.

Persons: Adriana Dutkiewicz, sedimentologist, ”, Dietmar Müller, Müller, “, ” Müller, Joel Hirschi Organizations: CNN, Nature Communications, University of Sydney, Atlantic, National Oceanography

☆ An act of generosity is one of the 'quickest and easiest ways to get happier'—here's why
▼ + stars: | 2024-02-28 | by ( Renée Onque | ) www.cnbc.com time to read: +3 min

Buying someone a coffee or holding the door open for the person behind you are examples of one of the simplest ways to increase your happiness: generosity. "One of the quickest and easiest ways to get happier is to be generous," Dan Harris said in a recent episode of his podcast, "Ten Percent Happier with Dan Harris." In some ways, that's the least interesting part of it," said Chris Anderson, curator of TED who spoke with Harris for his podcast. The scientific explanation behind that is that "we are wired to be generous," Anderson said. It's really, really true now, more so than it has ever been," Anderson said.

Persons: Ruth Gottesman, Gottesman, Dan Harris, Chris Anderson, Harris, Anderson, We've Organizations: Albert Einstein College of Medicine, Research, CNBC, Harvard, Nature Communications, TED, Cleveland

☆ People reversed their biological age by almost 3 years on a diet that mimics fasting in a study. Here's what they ate.
▼ + stars: | 2024-02-22 | by ( Kim Schewitz | ) www.businessinsider.com time to read: +5 min

AdvertisementFollowing a diet that mimics fasting for five days a month appeared to reverse people's biological age by two and a half years on average in a study. These factors can be used to measure biological age, the authors of the study published January 20 in Nature Communications, said. While chronological age refers to how many years someone has been alive, biological age is a measure of how well cells and tissues are functioning. On day one of the FMD, participants ate around 1,100 calories, and around 720 on days two to five. Cultivating a sensible exercise habit could achieve the same or even better results, Clancy said, and is maintainable into older age.

Persons: Valter Longo, USC Leonard Davis, Longo, Levine, Clare Bryant, David Clancy, Clancy Organizations: USC Leonard, USC Leonard Davis School of Gerontology, Cleveland Clinic, Nature Communications, Cambridge University, UK, Lancaster University, BMI

☆ Scientists Find Genetic Signature of Down Syndrome in Ancient Bones
▼ + stars: | 2024-02-20 | by ( Carl Zimmer | ) www.nytimes.com time to read: +1 min

Scientists have diagnosed Down syndrome from DNA in the ancient bones of seven infants, one as old as 5,500 years. Their method, published in the journal Nature Communications, may help researchers learn more about how prehistoric societies treated people with Down syndrome and other rare conditions. Down syndrome, which occurs in 1 in 700 babies today, is caused by an extra copy of chromosome 21. The extra chromosome makes extra proteins, which can cause a host of changes, including heart defects and learning disabilities. But Down syndrome — also known as trisomy 21 — is a remarkably variable disease.

Persons: — Organizations: Nature Communications

☆ Is That Polar Bear Getting Enough to Eat? Try a Collar With a Camera.
▼ + stars: | 2024-02-13 | by ( Delger Erdenesanaa | ) www.nytimes.com time to read: +1 min

Climate change is stretching the length of time parts of the Far North go without sea ice, which polar bears rely on to hunt their preferred prey: blubbery, calorie-rich seals. When the ice melts in summer, the bears move onto land and face two options. They can rest and slow down to a state approaching hibernation, or they can forage for alternative food like berries, bird eggs and small land animals. Scientists tracking 20 polar bears in Manitoba, below the Arctic Circle at the southern end of the animals’ range, found that the option the polar bears chose didn’t make much difference. Scientists estimate that, going forward, there will be five to 10 more days without sea ice each decade.

Persons: didn’t, ”, Anthony Pagano Organizations: U.S . Geological Survey, Nature Communications Locations: Manitoba, Hudson Bay

For polar bears, the climate change diet is a losing proposition, a new study suggests. With Arctic sea ice shrinking from climate change, many polar bears have to shift their diets to land during parts of the summer. Usually polar bears eat high-fat seals while based on sea ice, near where the seals are. The United States Fish and Wildlife Service lists polar bears as a threatened species “due to the loss of its sea ice habitat." When polar bears have sea ice, they feast on seals.

Persons: Anthony Pagano, fatten, Pagano, Andrew Derocher, ” Derocher, ”, Derocher, Karyn Rode, “, ” Rode, Kristin Laidre, Laidre, Stephanie Windeler, ___ Read, Seth Borenstein Organizations: Nature Communications, Geological Survey, Data, United States Fish and Wildlife Service, University of Alberta, University of Washington, Canada, International Union for Conservation of Nature, Associated Press Locations: U.S, Hudson, London, AP.org

☆ ‘Moths to a flame’: Insect behavior around light isn’t about attraction, scientists say
▼ + stars: | 2024-02-07 | by ( Taylor Nicioli | ) edition.cnn.com time to read: +7 min

Gaining a better understanding of the impact of artificial light on these winged creatures is crucial as light pollution plays an increasing role in the decline of global insect populations, the researchers wrote. Artificial light confuses nocturnal insectsWhen artificial light does not interfere, nocturnal insects keep their backs pointed toward whatever direction is brightest, which is typically the sky versus the ground. By using insect-scale motion-capture cameras, the researchers determined that the flying insects exhibited three consistent behaviors: orbiting, stalling and inverting. Moths and other insects can become trapped in a disorienting orbit around artificial light sources such as street lamps and porch lights. The new findings could help with conservation by fueling research on how to minimize the effects of light pollution on the insects, Dombroskie said.

Persons: it’s, critters, Samuel Fabian, Sam Fabian “, … It’s, ” Fabian, that’s, ”, Yash Sondhi, Sondhi, Sam Fabian, Fabian, Floyd Shockley, Shockley, ancestrally, “, Jason Dombroskie, Dombroskie Organizations: CNN, Nature Communications, Imperial College London’s, Florida Museum, Florida International University, Smithsonian National Museum of, Cornell, Insect, National Wildlife Foundation Locations: bioengineering, Miami, Washington , DC

☆ Plants can talk to each other and scientists say it should make us rethink how we treat them
▼ + stars: | 2024-01-31 | by ( Maiya Focht | ) www.businessinsider.com time to read: +5 min

AdvertisementWhen healthy plants received warning messages from damaged plants, they lit up like a light bulb, which the scientists recorded using a special microscope that detects certain chemicals as light. These compounds enter healthy plants through pore-like holes called stomata, and travel throughout the leaf, spreading the information around the plant. Scientists think healthy plants can use warning signals from damaged plants for defense. The scientists separated healthy plants from damaged plants but chemicals were able to pass between the plants via an air pump. There is no border between animals and plants," Toyota said.

Persons: —, Masatsugu, Guido Mieth Organizations: Service, Business, Toyota, Saitama University, Nature Communications, Masatsugu Toyota, Saitama University Yes, Saitama University Toyota, Getty Locations: Saitama

☆ Scientists think they've finally solved the millennia-old mystery of why bugs flock to your porch light
▼ + stars: | 2024-01-31 | by ( Jenny Mcgrath | ) www.businessinsider.com time to read: +6 min

The question of what brings insects toward lights of all kinds — from flames to porch lamps — is an ancient one. AdvertisementIt was as if they were using the light source as a way to orient themselves to the sky. Sam FabianBut Fabian said they tested this theory and found that some insects started traveling in a different direction when a new light source switched on. A less-bright future for insectsThere's a reason scientists have long sought to answer the question of why insects are attracted to artificial light. Oboyski also worries that light pollution is impacting the way insects navigate through their environments.

Persons: —, Mary Esther Murtfeldt, Sam Fabian, Chris Robbins, Getty Images Fabian, Yash Sondhi, Fabian, Peter Oboyski, wasn't, Oboyski, Sam Fabian Fish, It's, Sondhi, they're Organizations: Service, Imperial College London, Business, Getty Images, Essig, of Entomology, Nature Communications Locations: Costa Rica

Rather than being attracted to light, researchers believe that artificial lights at night may actually scramble flying insects' innate navigational systems, causing them to flutter in confusion around porch lamps, street lights and other artificial beacons. Political Cartoons View All 253 ImagesThat would make sense if the strongest light source was in the sky. But in the presence of artificial lights, the result is midair confusion, not attraction. They also documented that some insects will flip upside down — and often crash land — in the presence of lights that shine straight upward like search lights. Insect flight was least disrupted by bright lights that shine straight downward, the researchers found.

Persons: that's, ”, Tyson Hedrick, Hill, “ They're, Sam Fabian, Avalon Owens Organizations: WASHINGTON, University of North, Imperial College London, Nature Communications, Harvard, Associated Press Health, Science Department, Howard Hughes Medical Institute’s Science, Educational Media Group, AP Locations: University of North Carolina, Costa Rica

☆ Scientists clone second species of monkey
▼ + stars: | 2024-01-16 | by ( Katie Hunt | ) edition.cnn.com time to read: +6 min

CNN —Meet Retro, a cloned rhesus monkey born on July 16, 2020. Retro is only the second species of primate that scientists have been able to clone successfully. He was not involved in the latest research but has collaborated with some members of the research team on other primate studies. However, a rhesus monkey was cloned in 1999 using what researchers consider a simpler cloning method. Cloned monkeys can be genetically engineered in complex ways that wild-type monkeys cannot; this has many implications for disease modeling.

Persons: Falong Lu, ”, Lu, haven’t, Dolly, Miguel Esteban, Esteban, ” Lu, Zhong Zhong, Hua Hua, Lluís Montoliu, wasn’t, “ Organizations: CNN, Nature Communications, State Key Laboratory, Molecular, Biology, of Genetics, Chinese Academy of Sciences, “, Guangzhou Institute of Biomedicine, Covid, National Academies of Sciences, Engineering, Medicine, Royal Society for Prevention, National Center for Biotechnology Locations: Shanghai, Beijing, Spain

☆ Mucus-Covered Jellyfish Hint at Dangers of Deep-Sea Mining
▼ + stars: | 2023-11-21 | by ( Kate Golembiewski | ) www.nytimes.com time to read: +1 min

Deep-sea mining companies have set their sights on these minerals, aiming to use them in batteries and electronics. Environmentalists warn that the mining process and the plumes of sediment it would dump back into the sea could affect marine life. A series of shipboard experiments on jellyfish in the Norwegian fjords, published Tuesday in the journal Nature Communications, offer insights into those warnings. The scientists approximated the effects of mining by pumping sediment into the jellies’ tanks, essentially asking how the animals would cope with the muddy water. The researchers selected helmet jellyfish as their research subjects because of the ubiquity and hardiness of the dinner-plate-size creatures.

Persons: ”, Helena Hauss Organizations: Nature Communications, Norwegian Research Center, Helmholtz, Ocean Research Locations: Norwegian, Ocean Research Kiel, Germany

☆ Scientists said the ozone hole was recovering. That good news was premature, one study claims
▼ + stars: | 2023-11-21 | by ( Angela Dewan | ) edition.cnn.com time to read: +4 min

But in a new study published Tuesday, some scientists claim it may not be recovering at all, and that the hole may even be expanding. In a paper, published by Nature Communications, they found that ozone levels have reduced by 26% since 2004 at the core of the hole in the Antarctic springtime. They used historical data to compare that behavior and changing ozone levels, and to measure signs of ozone recovery. “Altogether, our findings reveal the recent, large ozone holes may not be caused just by CFCs,” Kessenich said. “Those events have been shown to have strongly decreased the ozone hole size,” he said, “so including those events would probably have nullified any long-term negative trend.”

Persons: ”, Hannah Kessenich, didn’t, ” Kessenich, —, Martin Jucker Organizations: CNN, Nature Communications, University of Otago, University of New, Science Media Center Locations: UN, Montreal, New Zealand, El, Southern, University of New South Wales, Australia

☆ Gamma-ray burst in faraway galaxy disturbed Earth's upper atmosphere
▼ + stars: | 2023-11-14 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

This gamma-ray burst, researchers said on Tuesday, caused a significant disturbance in Earth's ionosphere, a layer of the planet's upper atmosphere that contains electrically charged gases called plasma. It helps form the boundary between the vacuum of space and the lower atmosphere inhabited by people and Earth's other denizens. The gamma rays from the burst impacted Earth's atmosphere for a span of about 13 minutes on Oct. 9, 2022. Instruments on Earth showed that the gamma rays disturbed the ionosphere for several hours and even set off lightning detectors in India. The effects of this gamma-ray burst were studied with the help of the China Seismo-Electromagnetic Satellite (CSES), also called Zhangheng, a Chinese-Italian mission launched in 2018.

Persons: Mirko Piersanti, Piersanti, Pietro Ubertini, Ubertini, Will Dunham, Rosalba O'Brien Organizations: REUTERS, Acquire, Rights, Ray Astrophysics, University of L'Aquila, Nature Communications, National Institute for Astrophysics, Thomson Locations: Italy, India, China

☆ A Supernova ‘Destroyed’ Some of Earth’s Ozone for a Few Minutes in 2022
▼ + stars: | 2023-11-14 | by ( Katrina Miller | ) www.nytimes.com time to read: +1 min

On Oct. 9, 2022, telescopes in space picked up a jet of high energy photons careening through the cosmos toward Earth, evidence of a supernova exploding 1.9 billion light-years away. Such events are known as gamma ray bursts, and astronomers who have continued studying this one said it was the “brightest of all time.”Now, a team of scientists have discovered that this burst caused a measurable change in the number of ionized particles found in Earth’s upper atmosphere, including ozone molecules, which readily absorb harmful solar radiation. “The ozone was partially depleted — was destroyed temporarily,” said Pietro Ubertini, an astronomer at the National Institute of Astrophysics in Rome who was involved in discovering the atmospheric event. The effect was detectable for just a few minutes before the ozone repaired itself, so it was “nothing serious,” Dr. Ubertini said. But had the supernova occurred closer to us, he said, “it would be a catastrophe.”The discovery, reported Tuesday in a paper published in the journal Nature Communications, demonstrates how even explosions that occur far from our solar system can influence the atmosphere, which can be used as a giant detector for extreme cosmic phenomena.

Persons: ”, Pietro Ubertini, Ubertini Organizations: National Institute of Astrophysics, Nature Communications Locations: Rome

Researchers have known for a while that beer production will be affected by climate change, said Mirek Trnka, a professor at the Global Change Research Institute. Political Cartoons View All 1240 Images"If we don’t act, we’re just going to also lose things that we consider not to be, for example, sensitive or related to climate change. Climate change moves faster than we might realize – but still too slowly for many to notice, he said. Hayes kept the card in his office, and has made it his life’s mission to work on improving winter barley. No matter what farmers and companies do with hops and winter barley, climate change may affect what beer-lovers are able to buy in the future.

Persons: crisscrossed Gayle Goschie's, Goschie, Mirek Trnka, we’re, ”, Trnka, Shaun Townsend, Townsend, Kevin Smith, Smith, – Patrick Hayes, Oregon State University –, Hayes, Ashley McFarland, Douglass Miller, ” Hayes, Dee, Ann Durbin, Walling, ___, Melina Walling, Read Organizations: Change Research, Nature Communications, Oregon State University, University of Minnesota, Barley, Molson Coors, Anheuser Busch, Associated, Cornell, Associated Press, AP Locations: ANGEL, Portland , Oregon, Goschie, Willamette, U.S, Europe, Midwest, Detroit, Chicago

☆ Scientists detect oxygen in noxious atmosphere of Venus
▼ + stars: | 2023-11-08 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

Data from NASA's Magellan spacecraft and Pioneer Venus Orbiter is used in an undated composite image of the planet Venus. Its thick and noxious atmosphere is dominated by carbon dioxide - 96.5% - with lesser amounts of nitrogen and trace gases. In fact, with Venus getting far less scientific attention than other planets such as Mars, the direct detection of its oxygen has remained difficult. They noted that this atomic oxygen, which consists of a single oxygen atom, differs from molecular oxygen, which consists of two oxygen atoms and is breathable. "The Venus atmosphere is very dense.

Persons: Heinz, Wilhelm Hübers, Hübers, Helmut Wiesemeyer, Max Planck, Wiesemeyer, Will Dunham, Rosalba O'Brien Organizations: NASA, JPL, Caltech, Handout, REUTERS, Rights, Venus, Boeing, German Aerospace Center, Nature Communications, Max Planck Institute for Radio Astronomy, Thomson Locations: SOFIA, Hawaii, Germany

☆ 35 elephants suddenly dropped dead in 2020. Their case has finally been solved.
▼ + stars: | 2023-11-07 | by ( Hannah Getahun | ) www.businessinsider.com time to read: +3 min

In 2020, 35 elephants dropped dead in Zimbabwe over a month timespan. Between August and September 2020, 35 elephant carcasses were retrieved from various safaris and protected lands in Zimbabwe — with eleven of these animals dying within a 24-hour period. AdvertisementAdvertisementThey concluded that most, if not all, the elephants died as a result of septicemia, or blood poisoning, caused by the bacteria. The 35 deaths in Zimbabwe also coincided with a mass die-off of elephants in Botswana in 2020. At least 350 elephants died within a three-month timespan, and researchers at the time concluded that blue-green algae contaminated local water sources and poisoned the elephants.

Persons: —, Dr, Chris Foggin, Foggin Organizations: Service, Nature Communications, Victoria Falls Wildlife Trust, CNN Locations: Zimbabwe, Africa, Asia, Victoria Falls, Botswana

☆ Seals with funny hats discovered a hidden canyon over a mile deep under Antarctica and scientists want to honor the animals by naming it after them
▼ + stars: | 2023-11-07 | by ( Maiya Focht | ) www.businessinsider.com time to read: +4 min

Scientists put trackers on Antarctic seals to help them map the ocean floor. The deep-diving seals revealed a massive underwater canyon over a mile deep. This canyon may help scientists predict how the Antarctic ice sheet will react to climate change. Joseph MarlowUnderstanding ocean geography helps scientists predict how Antarctica's ice sheet has reacted to global climate change in the past. Antarctic seals, like the 50 Weddell seals and 215 southern elephant seals they tagged, regularly travel to great depths of the ocean.

Persons: Clive McMahon, aren't, they're, Joseph Marlow, Fausto Ferraccioli Organizations: Service, Sydney Institute of Marine Science, East, NBC, Australian Center for Excellence, Aquatic, Seals, Australian Antarctic Program Locations: Vincennes Bay, Antarctica

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