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Piranhas replace their razor-sharp dentures all at once

One of the most feared fish in the world has to replace its dull teeth by simultaneously swaping old teeth from one side of the mouth with news ones.

Biodiversity is a linchpin of productive, resilient crops

In matters of the farm, diversity matters.

California becomes the first US state to ban animal fur products

The law will apply in 2023, as well as another initiative that bans animals in circus performances

Sleep deprivation crankiness linked to white matter compactness

Some people's moods are more resilient to sleep deprivation thanks to the way white matter is arranged in the brain.

3000-year-old abandoned tools show that ancient warriors crossed Europe to join battlefields

The epic battlefield is littered with evidence of social organization at a grand scale.

New model predicts where Ebola might strike next -- and climate change is an issue

Climate change and poverty can increase the risk of an outbreak, researchers warn.

Monkeys are willing to try new solutions to problems, while humans stick to what they know -- even if it's less efficient

"Why don't you try using those opposable thumbs to fix it, huh, human?"

Scientists endorse mass civil disobedience for push climate action

It's not common for scientists to take a social stand.

Green economy expands in the US, overtaking fossil fuel industry

Over nine million people currently work in the green economy in the US

Climate change is affecting the Arctic ecosystem due to extreme weather events

Extreme snowfall is threatening Arctic animals.

Mitochondria and Tesla battery packs work pretty much the same way, study reports

But will they claim copyright?

Whales blow bubbly nets to help them fish -- and we have it on camera

God, they're cute.

Renewables are gradually overtaking fossil fuels in the UK, report shows

Electricity generated from clean energy is beating out fossil fuel plants -- for the first time in 120 years.

Investing in flashy display pays off for species that mate for life

Male finches continuously fight for their partner's attention -- and it seems like it's in both their interests to do so.

Underwater volcanoes can produce stadium-sized bubbles

Some bubbles were up to 750 feet (228 meters) across.

Black Holes could stunt the growth of dwarf galaxies

In smaller galaxies, large-scale winds from active black holes could hinder the formation of stars.

Exposure to THC causes alterations in the brain of unborn rats

The findings come on a backdrop of growing marijuana legalization in the U.S.

Algal blooms are getting worse on a global scale, research shows

Intensity of algal blooms has increased over the past three decades

Humble people are aware of their accomplishments - they just don't feel entitled to special treatment

Non-entitlement may be the crux of humbleness.

Trio of economists awarded Nobel prize for their work on alleviating poverty

You could hardly imagine a more noble award.

Antarctica is being melted from the inside-out by hidden rivers

They run below the Antarctic shelves and destabilize and melt them

Humans could have salamander-like ability to regrow cartilage

Study opens door to new treatments for joint injuries and diseases.

The clap is making a comeback -- as are syphilis and chlamydia

"She's got the clap" -- CDC.

New gene-based immunotherapy hunts for hidden cancer cells

This new system should, in theory, be effective against multiple cancer types, including those currently resistant to immunotherapy.

New material selectively captured CO2 molecules and turns them into useful products

Propeller-shaped molecules trap CO2, which can then be used to manufacture useful organic materials.

Some water ice on the Moon is billions of years old -- and colonists could drink it all up

Bottoms up!

Doctors petition FDA to add breast cancer warning on cheese

12,000 doctors have signed the petition.

Cut down on dairy and sweets if you're struggling with acne, study concludes

Yes, even chocolate.

Typhoon Hagibis hits Japan with intense rainfall and winds

Torrential rain and tornado-like winds are lashing out at mainland Japan. It’s probably the strongest storm to hit Japan in 60 years. Typhoon Hagibis is currently the strongest storm on Earth, and will quite possibly be the strongest of the year. It made landfall on Saturday on Japan’s East coast, striking with consistent winds at […]

Da Vinci's bridge that never was -- how the world missed an architectural revolution

If it would have been accepted at the time, it would have revolutionized architecture.

NASA gears up to test its first all-electric aircraft

The ultimate goal is to create a zero-emissions aviation industry.

Animal bones are the original canned food, research finds

"The bones were used as 'cans' that preserved the bone marrow."

Bronze Age burials reveal social inequality and marriage patterns

Even in death, genes and burial customs have many stories to speak.

Japan braces for steep rain and wind due to Hagibis

The storm is set to make landfall on Saturday

Climate change has already claimed 5 islands in the Pacific

These are the first islands we've lost to climate change.

Dinosaur predator with shark-like teeth found in Thailand

Long before T. rex entered the picture, this agile predator dominated Southeast Asia's floodplains.

How to dismantle atomic bombs -- for real this time

Many atomic bombs that are officially dismantled are still very much functional. A team of researchers wants to fix that.

Can Greta Thunberg win the Nobel Peace Prize?

She is the favorite candidate for bookmakers, but experts show doubts.

Blank paper on ninja history wins top grades -- it was written in invisible ink

The student wrote the paper using the ninja technique of "aburidashi -- and her professor loved it!

The atmosphere above Antarctica has gotten so hot it broke all previous records

The sudden stratospheric warming will cause Australia to experience less rainfall and higher temperatures.

These 30 cities are leading the way in climate action -- their emissions are already dropping

As countries lack ambition, cities take the lead in reducing their emissions.

Wastewater analysis can reveal how wealthy, healthy, and well-fed you are

Like my grandma used to say, even kings uh, go to the toilet.

Researchers make neurons glow as they fire to record neural activity

Shine bright like ne-u-ron.

25% of US healthcare spending is wasted

That's over $700 billion a year.

Badger culling is probably counterproductive and actually helps spread tuberculosis

Vaccination can be much more effective and humane, the researchers suggest.

These twenty companies are behind a third of mankind's greenhouse gas emissions

These companies have a moral responsibility to account for these emissions.

Every 2.6 years of playing American football doubles risk of devastating brain disease

The repeated blows to the head involved in tackle football may put many players at a huge risk of developing neurodegenerative disease.

Lunar dirt can be broken down into oxygen and metals

This study rocks.

Dog owners live longer and are more protected from heart attacks

Dogs not only fill homes with joy, they also help humans live healthier lives.

Can recycle help the environment? Not for half of UK adults

Many Britons are woefully unaware of the importance of recycling.