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The Latest Breaking News from Live Science

We may finally understand how metformin lowers blood sugar, animal study finds

The common diabetes drug metformin works partly by excreting sugar from the bloodstream into the intestines, where gut bacteria then convert it into chemicals that improve the insulin response.

LiveScience

Megalodon may have grown up to 80 feet long — far larger than previous estimates

New study suggests megalodons may have grown 15 feet longer than some previous estimates, had enormous babies, and didn't look like supersized great white sharks.

LiveScience

Was medieval armor bulletproof?

The metal suits worn by knights during the Middle Ages were originally designed to protect against weapons such as swords. But could medieval armor also stop bullets?

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Science at a crossroads: Dispatches from Friday's 'Stand Up for Science' rallies across the US

Our science journalists reported on the Stand Up for Science rallies held in New York City and Raleigh, North Carolina.

LiveScience

28,000-year-old Neanderthal-and-human 'Lapedo child' lived tens of thousands of years after our closest relatives went extinct

Researchers used a novel method of radiocarbon dating to figure out the age of the Lapedo child, who had both Neanderthal and human traits.

LiveScience

Is there really a difference between male and female brains? Emerging science is revealing the answer.

Brain scans, postmortem dissections, artificial intelligence and lab mice reveal differences in the brain that are linked to sex. Do we know what they mean?

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'Let's just study males and keep it simple': How excluding female animals from research held neuroscience back, and could do so again

Neuroscience research has only recently begun to prioritize the inclusion of both male and female lab animals in studies. Could we see that shift reverse?

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Powerful 'equinox auroras' may arrive soon: Why changing seasons can bring the best northern lights

Expect an uptick in aurora sightings near the spring equinox on March 20, as celestial geometry swings in favor of geomagnetic disturbances.

LiveScience

'Mini placentas' in a dish reveal key gene for pregnancy

Different versions of a gene called ACE2 affect how well the placenta grows during pregnancy, a laboratory study finds.

LiveScience

Unproven Einstein theory of 'gravitational memory' may be real after all, new study hints

Einstein's theory of general relativity suggests that the "memory" of ancient events, such as black hole mergers, may be etched into the fabric of space-time by gravitational waves. New research shows how this theory of gravitational memory could finally be proven.

LiveScience

2,600-year-old jewelry stash from ancient Egypt includes gold statuette depicting family of gods

Archaeologists have found a hoard of 2,600-year-old jewelry at Karnak Temple in Egypt.

LiveScience

CDC data reveal plummeting rate of cervical precancers in young US women — down by 80%

New CDC data on falling rates of precancerous cervical lesions in the U.S. underscore the benefits of HPV vaccination.

LiveScience

Brain damage reported in 13% of kids who have died of flu this season, CDC finds

A CDC report has revealed that nine of 68 of children who died of flu this year had brain damage, but it's unclear whether this influenza-associated encephalopathy is on the rise.

LiveScience

'We didn't know they were going to be this cute': Scientists unveil genetically engineered 'woolly mice'

Scientists with the company Colossal have created genetically engineered "woolly mice" with thick, golden-brown hair and fat deposits similar to those of cold-adapted woolly mammoths.

LiveScience

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'Einstein's equations need to be refined': Tweaks to general relativity could finally explain what lies at the heart of a black hole

Black hole singularities should not exist, according to theories of quantum mechanics. New tweaks to Einstein's equations of general relativity could finally do away with them, and explain what truly lies at the heart of a black hole.

LiveScience

Sunrise on the moon captured by Blue Ghost spacecraft after NASA and Firefly Aerospace announce successful lunar landing

The Blue Ghost spacecraft has taken its first images of the lunar surface as Firefly Aerospace and NASA celebrate a successful moon landing.

LiveScience

When did modern humans reach each of the 7 continents?

Ideas about the global dispersal of Homo sapiens have changed over time.

LiveScience

Why do cats make a weird face after smelling something?

"Stink face" seems silly to us, but for cats it's a serious way to gather social information through smell.

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LiveScience

Scientists describe new type of fat in human bellies

Scientists have pinpointed and described unusual subtypes of fat cells that may help scientists explain why gut fat is linked to poor health. The research could open up new avenues for medical treatments.

LiveScience

Fortifications older than the Great Wall of China discovered in Chinese mountain pass

A 2,800-year-old fortified wall has been found in a narrow mountain pass in China.

LiveScience

Why can't you tickle yourself?

Why do we laugh when tickled but are unable to tickle ourselves? Neuroscience has the answer.

LiveScience

Sneaky bamboo can control the genes of the pandas eating it, scientists discover

Tiny scraps of genetic material from bamboo might influence the genes of pandas, helping them adapt to a mostly bamboo diet.

LiveScience

Mystery of how man's brain turned to glass after Vesuvius eruption possibly solved

The new study on the "glass brain" from Herculaneum is the latest episode in a long-running academic dispute.

LiveScience

Watch polar bear cubs emerge from their winter den for 1st time on Svalbard

For nearly a decade, researchers have gathered camera footage from outside the dens of female polar bears and their cubs on Svalbard, shedding light on the behaviors linked to denning.

LiveScience

Thutmose II tomb discovery raises new mysteries: Where is his mummy, and why wasn't he buried in the Valley of the Kings?

Why did Hatshepsut have her husband buried to the west of the Valley of the Kings, while she was buried in the valley itself?

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