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Wearing a bike helmet makes your brain feel safer -- even when you're not in danger

"It is stunning to observe how suggestions can influence brain activity," the authors say.

Fossil Friday: leg bones lead to extinct giant penguin in New Zealand

New Zealand isn't a stranger to extinct big birds.

Wildfires in Africa keep the Amazon lush with fertilizing smoke

Ashes to bananas.

Air pollution in large cities can damage your lungs as much as 'smoking one pack a day'

Long-term exposure to all major air pollutants is linked with higher incidence of lung damage.

Melting Antarctic ice can 'significantly' delay climate heating in Southern Hemisphere

The trade-off, of course, is an 80 cm-higher global sea level.

Climate warming responsible for West Antarctic Ice Sheet melting

"This is the first evidence for a direct link between human activities and the loss of ice from West Antarctica."

Mosquito salivary glands could hold the secret to containing malaria forever

There are chitin walls in the insects' salivary glands that block 90% of the parasites from infecting a new host.

The first symptom of Alzheimer's is excessive sleepiness

Luckily it's not the only one because I already have it. Double helpings.

Researchers looking for dark matter fail, find gold instead

But, remember kids, the real treasure was the friends they made along the way.

Hubble snaps breathtaking new image of Jupiter

Looks tasty, honestly.

Devastated Fukushima nuclear plant will run out of storage space for radioactive water in three years

With the 2020 Summer Olympics in Tokyo fast approaching, the government doesn't want to rock the boat too much and is delaying a decision.

Human-driven extinction cost New Zealand 50 million years' worth of bird evolution

Losses include but are not limited to those giant eagles at the end of Lord of the Rings.

Neonicotinoid pesticides pose 'a major danger to pollinating insects'

Bad news for bees.

Warmer climate will make for more air turbulence, bumpier flights

Hold on to your passport!

Animals can experience post-traumatic stress disorder from exposure to predators

"Our findings support both the notion that PTSD is not unnatural, and that long-lasting effects of predator-induced fear with likely effects on fecundity and survival, are the norm in nature."

Robotic, seahorse-inspired tail can help people maintain balance through sickness or hard work

Cosplay enthusiasts rejoice!

Some seagulls will steal your food unless you stare them in the eyes

It's like a game of chicken where the winner gets to eat your chips.

First lab-grown mini livers will allow researchers to study the organ, its diseases, and treatments

"I imagine in the future we can make human livers where you can order what kind of function you want, or even enhance function."

Scientists create the thinnest gold plates ever, just two atoms thick

All of the bling, none of the volume.

Wildfires lock away a 'considerable amount of carbon' for centuries, or even millennia

I'll admit it -- I did not expect this.

Unusual hepatitis B virus found in shrews could help us tackle chronic hepatitis B

"Since the virus cannot infect human liver cells, it is highly unlikely that the virus can infect people."

Fossil Friday: tiny tooth belonged to the smallest monkey ever found

Size isn't everything.

Reducing air pollution levels won't cause a spike in climate heating

So let's clean it up.

Bats can use leaves as 'mirrors' to spot hiding prey -- but it only works at an angle

*happy bat noises*

New "bone spackling" that can fix injuries with a simple injection shows promise in mice

Sticks and stones may break your bones but this thing will fix'em right up.

Air pollution levels rise by 30% in India as farmers align to new groundwater depletion policy

On one hand, northwest India needs to tackle groundwater depletion. On the other hand, air pollution claimed the lives of almost 1.1 million Indians in 2015, and costs 3% of the country's gross domestic product, according to the study.

Discovery of new "don't eat me protein” points the way to effective cancer therapy

Take away the proteins, and our immune systems decimate cancers.

Birmingham University researchers extract cancer-killing drug from common flower

"It's a clear demonstration that parthenolide has the potential to progress from the flowerbed into the clinic," they report.

The price of ivory is up 1,000% since global ban on ivory trade, but is slowly decreasing

The authors studied where ivory is sold and for how much -- in a bid to nip poaching at the market stall.

Infants expect leaders to right wrongs, and are surprised when they don't

We have an instinctive understanding that The Boss should fix injustice in the group.

Hospitals in Europe are contributing to the spread of extremely drug-resistant bacteria

However, simple infection control procedures can go a long way to mitigate the risk.

NASA finds new exoplanet that orbits three different suns

The planet is so close to its host star that it only has a 5.36 day-long orbit. At this distance, surface temperatures should hover around 428 Kelvin (155 °C; 311 °F).

The Vikings' Bronze Age relied on imported metal, new study finds

Trade makes us all richer!

Researchers identify neurons that shut down rewards and motivation in the brains of mice

"We might think of different scenarios where people aren't motivated like depression and block these neurons and receptors to help them feel better," the authors explain.

London's waterways found to contain antibiotic-resistant bacterial genes

"This [study] shows that more research is needed into the efficiency of different water treatment methods for antibiotic removal, as none of the treatments currently used were designed to incorporate this," says lead author Dr. Lena Ciric.

Climate change may bring "megadroughts" back to the US Southwest

The American Southwest was left bone-dry between the 9th and 15th centuries by about a dozen megadroughts; they could be coming back.

Researchers map the genetic mechanisms that makes hydras 'immortal'

"All organisms share the same injury response pathway but in some organisms like hydra, it leads to regeneration," the team explains. They're working on finding out why, and how to copy it.

Pufferfish spines and the hair on your head are governed by the same set of genes

"It just blows me away that regardless of how evolutionarily-different skin structures in animals are, they still use the same collection of genes during development."

YouTube conspiracy theorists dominate climate science content by hijacking search terms

"It's alarming to find that the majority of videos propagate conspiracy theories about climate science and technology."

If you want to find your passion, keep a first-person perspective on life

What we experience sometimes doesn't fit with what we think about ourselves -- keeping a first-person perspective helps cut through that.

Use of antibiotics without a prescription is an understudied but serious issue in the US

"The need to focus on nonprescription antibiotic use in community-based antimicrobial stewardship programs is urgent," the authors report.

Researchers identify gene that makes plants and fungi play nice -- we'll use it to make better crops

"The resulting plants would grow larger and need less water and fertilizer, for instance," say the authors.

Every 10% increase in gun ownership raises domestic gun homicides by 13%

States with higher gun ownership had much higher rates of domestic gun homicides. There were no "significant differences for nondomestic firearm homicide rates,” the authors add.

A warm bath 1-2 hours before bedtime helps improve sleep quality, meta-analysis shows

It definitely can't hurt your chances.

Clean money, clean energy -- a look at investment patterns in the energy sector

Money always talks -- and it's talking renewable.

Fossil Friday: researchers discover new, ancient relative of the tilapia

Do you think it was tasty, too?

Mosquitoes hunt first by smell, then by eyesight

They track the CO2 you breathe out.

Water from thin air: a look at how rain and precipitation forms

There are a lot of elements that come together to 'make it rain'. Both in nature and in the club.

Bee sting vaccine successfully passes human trials in Australia

If you're allergic to bee venom, this vaccine is for you.

Analysis of 19 million cats shows how our pets' weight evolves throughout their lifetimes

"As humans, we know we need to strive to maintain a healthy weight, but for cats, there has not been a clear definition of what that is. We simply didn't have the data," the authors say.

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