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Teenage girl who lived in Italy 12,000 years ago had a rare form of dwarfism, DNA study showsIn 1963, researchers unearthed two Stone Age skeletons that were buried in an embraced position in a cave in Italy. Now, DNA testing has revealed that one of them had a rare genetic condition.
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People, not glaciers, transported rocks to Stonehenge, study confirmsA new analysis of mineral grains has refuted the "glacial transport theory" that suggests Stonehenge's bluestones and Altar Stone were delivered to Salisbury Plain by glaciers.
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Chocolate Hills: The color-changing mounds in the Philippines that inspired legends of mud-slinging giantsThe Chocolate Hills are 1,776 mounds on Bohol Island in the Philippines where grassy cover turns brown during the dry season.
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Enormous freshwater reservoir discovered off the East Coast may be 20,000 years old and big enough to supply NYC for 800 yearsAn expedition off the coast of Massachusetts has confirmed the existence of a freshwater reservoir beneath the seafloor. Now, scientists are starting to understand when and how it formed.
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18 of Earth's biggest river deltas — including the Nile and Amazon — are sinking faster than global sea levels are risingWorldwide, millions of people live in river deltas that are sinking faster than sea levels are rising, research suggests. This exacerbates the risk of catastrophic coastal flooding and land loss.
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Never-before-seen footage captures moment scientists find new, giant anaconda species in AmazonScientists recently discovered a new species of green anaconda in the Amazon rainforest. A new Nat Geo series shows the moment they encountered this snake in the wild.
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Avenue of the Baobabs: Madagascar's natural monument with dozens of 'mother of the forest' treesThe Avenue of the Baobabs preserves the remnant trees of an ancient tropical forest on Madagascar.
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NASA announces unprecedented return of sick ISS astronaut and crewNASA has announced the early return of Crew-11 from the International Space Station after an unidentified astronaut experienced a medical problem.
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Leonardo da Vinci's DNA may be embedded in his art — and scientists think they've managed to extract someIn a first, scientists have extracted DNA from a Renaissance-era drawing attributed to Leonardo da Vinci, but they can't be sure that the genetic material belongs to the Italian polymath.
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'Wolf Supermoon' gallery: See the first full moon of 2026 in pictures from across the worldThe first full moon of 2026 shone brightly Saturday (Jan. 3). Known as the Wolf Moon, it appeared more luminous and larger than usual, rising together with Jupiter.
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Spotted Lake: Canada's soda lake with colorful brine pools that are smelly and slimy 'like the white of an egg'Spotted Lake is a soda lake that evaporates every summer, leaving a white crust with circular brine pools that can appear blue, green or yellow.
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Enough fresh water is lost from continents each year to meet the needs of 280 million people. Here's how we can combat that.Earth's continents are losing 4 Olympic swimming pools' worth of fresh water every second, with dire consequences for jobs, food security and water availability.
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Orcas are adopting terrifying new behaviors. Are they getting smarter?From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are displaying some fascinating — and sometimes terrifying — behaviors.
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Coconucos volcanic chain: Colombia's stunning cluster of volcanoes, lost in an otherworldly landscapeThe Coconucos volcanic chain is a mountain ridge dotted with at least 14 volcano craters, including one that is active and erupted in December 2025.
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Ancient burrowing bees made their nests in the tooth cavities and vertebrae of dead rodents, scientists discoverScientists made a unique discovery in a cave on the Caribbean island of Hispaniola: dozens of fossilized bee nests inside rodent bones that were deposited by owls thousands of years ago.
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Brutal lion attack 6,200 years ago severely injured teenager — but somehow he survived, skeleton found in Bulgaria revealsExtremely rare evidence of a lion attack on a teenage boy's remains suggests the teenager survived the initial trauma but became severely disabled, requiring support from his community.
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Cassius the giant crocodile died from sepsis after 40-year-old dormant infection burst from 'abscess,' necropsy revealsCassius was an 18-foot-long saltwater crocodile living in captivity in Marineland Crocodile Park in Australia. He died last year at the age of about 120, and we finally know why.
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China's Great Green Wall: The giant artificial forest designed to slow the expansion of 2 desertsSince 1978, China has planted more than 66 billion trees along its 2,800-mile-long northern border, and it wants to plant 34 billion more over the next 25 years to complete its "Great Green Wall."
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Amazon rainforest is transitioning to a 'hypertropical' climate — and trees won't survive that for longThe Amazon rainforest currently has a few days or weeks of hot drought conditions per year, but researchers say this could increase to 150 days per year by 2100.
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Earth's crust hides enough 'gold' hydrogen to power the world for tens of thousands of years, emerging research suggestsReservoirs of hydrogen gas that form naturally in Earth's crust could help humans decarbonize. The challenge now is finding these accumulations and working out how best to mine them, experts say.
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A huge helium shortage is looming — but ancient rocks in Earth's crust may be hiding massive reservoirsFor decades, helium has been produced with natural gas, generating huge carbon emissions. Now, geologists are looking for new helium sources — and finding enormous "carbon-free" reservoirs that could revolutionize the industry.
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18,000 dinosaur tracks discovered along ancient Bolivian coastline — and they set a new recordResearchers have counted 16,600 fossilized dinosaur footprints and 1,378 swim tracks at a site in Bolivia that showcase a variety of behaviors and different theropods from the Cretaceous period.
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China has planted so many trees it's changed the entire country's water distributionHuge "regreening" efforts in China over the past few decades have activated the country's water cycle and moved water in ways that scientists are just now starting to understand.
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Death Valley's 'world's hottest temperature' record may be due to a human errorA new analysis of July temperatures in Death Valley between 1923 and 2024 suggests the world record near-surface air temperature of 134 F measured in July 1913 may be erroneous.
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