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Bark beetles are killing the Earth's oldest trees. Can they be saved?

A 4,853-year-old Great Basin bristlecone pine tree known as Methuselah is growing high at Ancient Bristlecone Pine Forest in the White Mountains of Inyo County in eastern California, United States on November 28, 2021. It is also recognized as the non-clonal tree with the greatest confirmed age in the world. Tayfun Coskun/AA/dpa

Forest pathologist Martin MacKenzie strode forward on a narrow path through California's mythic bristlecone pine forest in the White Mountains near the Nevada border, methodically scanning gnarled limbs for the invaders that threaten the lives of some of the world's oldest trees.

These intruders are bark beetles, a menace smaller than a pencil eraser, but they bore by the thousands into the bark and feast on the moist inner core, where trees transport nutrients from roots to crown. Then they carve out egg galleries, where hungry larvae hatch.

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Monkeypox is on the rise. Here’s what to know about its symptoms, signs and testing

In the past two decades, the Centers for Disease Control and Prevention has recorded two individual cases of monkeypox and one outbreak among dozens of people across six states who became ill after having contact with pet prairie dogs. The two individual cases among U.S. residents, both in 2021, were associated with travel to Africa, according to the CDC, and the outbreak among more than 40 people occurred in 2003 after the pet prairie dogs were housed near small animals from Ghana — marking the first time that human monkeypox was reported spreading outside of Africa. With the number of confir...

Humans are aggressive, sometimes too much – could ‘moral enhancement’ technologies offer a solution?

It’s a mistake to think problematic aggression is limited to those with psychiatric disorders. Healthy people have also the capacity for impulsive violence – and resulting “morally” poor behavior.

Traditionally, moral development has been facilitated by social institutions such as religion, education and societal convention. But technology could change this.

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The Jan. 6 insurrection showed that performance crime is becoming increasingly popular

To film oneself committing a crime might seem a guileless act of self-incrimination, but it’s becoming increasingly popular. Take the Jan. 6 insurrection as a case in point.

With 874 people arrested on charges from disorderly conduct to seditious conspiracy, many were apprehended because of video or photos shared online. This is considered performance crime: the performance of criminal activity in which filming and sharing it with an audience is intrinsic to the crime itself.

The hearings held by the House Select Committee to Investigate the January 6 Attack on the U.S. Capitol have brought to light high-level closed-door conversations rarely shown in the media. In this emerging context, as a long-time researcher on alternative and digital media, my study of performance crime can help us understand both the importance and inadequacies of social media news feeds.

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NASA reveals Webb telescope's first cosmic targets

NASA said Friday the first cosmic images from the James Webb Space Telescope will include unprecedented views of distant galaxies, bright nebulae, and a faraway giant gas planet.

The US, European and Canadian space agencies are gearing up for a big reveal on July 12 of early observations by the $10 billion observatory, the successor to Hubble that is set to reveal new insights into the origins of the universe.

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Oldest European human fossil possibly found in Spain

A jawbone fragment discovered in northern Spain last month could be the oldest known fossil of a human ancestor found to date in Europe, Spanish paleontologists said Friday.

The researchers said the fossil found at an archaeological site on June 30 in northern Spain's Atapuerca mountain range is around 1.4 million years old.

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NASA releases James Webb telescope 'teaser' picture

NASA has a provided a tantalizing teaser photo ahead of the highly-anticipated release next week of the first deep-space images from the James Webb Telescope –- an instrument so powerful it can peer back into the origins of the universe.

The $10 billion observatory -- launched in December last year and now orbiting the Sun a million miles (1.5 million kilometers) away from Earth –- can look where no telescope has looked before thanks to its enormous primary mirror and instruments that focus on infrared, allowing it to peer through dust and gas.

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New giant dinosaur predator discovered with tiny arms, like T. rex

Paleontologists said Thursday they had discovered a new giant carnivorous dinosaur species that had a massive head and tiny arms, just like Tyrannosaurus rex.

The researchers' findings, published in the journal Current Biology, suggest that small forelimbs were no evolutionary accident, but rather gave apex predators of the time certain survival advantages.

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Nasa considers sending swimming robots to habitable ‘ocean worlds’ of the Solar System

Nasa has recently announced US$600,000 (£495,000) in funding for a study into the feasibility of sending swarms of miniature swimming robots (known as independent micro-swimmers) to explore oceans beneath the icy shells of our Solar System’s many “ocean worlds”. But don’t imagine metal humanoids swimming frog-like underwater. They will probably be simple, triangular wedges.

Pluto is one example of a likely ocean world. But the worlds with oceans nearest to the surface, making them the most accessible, are Europa, a moon of Jupiter, and Enceladus, a moon of Saturn.

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Sci-fi shows like ‘Westworld’ and ‘Altered Carbon’ offer a glimpse into the future of urban transportation

Before the pandemic, a typical commute may have involved choosing between walking, driving or taking public transit. Ride-sharing apps have also allowed us to request rides in a shared car, on a bike or even using a scooter. Walking might involve a journey that begins on a residential street and travels through bustling commercial strips, past cyclists and delivery drivers that would need to be dodged and manoeuvering through busy intersections.

The pandemic altered the commute for most and changed our experience of moving through cities. Municipalities have been installing bike lanes, reducing car lanes and parking, widening sidewalks and green spaces and creating space for electric cars.

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How beetles trick bees into feeding them food rich in nutrients

Honey bees are useful not only to humans but to other “free riders” attracted to their stored resources. The small hive beetle (Aethina tumida) is one of the species that rely on honey bee colonies to reproduce and survive. The adult beetle lays eggs on bee brood frames, full of honey and pollen. The beetle larvae then eat through these rich food sources.

The consequences for the bee colony can be lethal. The beetle larval activity causes the honey and pollen stores to start fermenting and the beetle larvae prey on the bee larvae and pupae.

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EPA likely underestimating amount of toxic forever chemicals in US water: analysis

The testing method used by the U.S. Environmental Protection Agency and local officials around the country is so circumscribed that regulators almost certainly have an incomplete understanding of the extent to which the nation's drinking water is contaminated with toxic "forever chemicals."

"There are so many PFAS that we don't know anything about, and if we don't know anything about them, how do we know they aren't hurting us?"

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How Pfizer won the pandemic -- reaping outsize profit and influence

The grinding two-plus years of the pandemic have yielded outsize benefits for one company — Pfizer — making it both highly influential and hugely profitable as covid-19 continues to infect tens of thousands of people and kill hundreds each day.

Its success in developing covid medicines has given the drugmaker unusual weight in determining U.S. health policy. Based on internal research, the company’s executives have frequently announced the next stage in the fight against the pandemic before government officials have had time to study the issue, annoying many experts in the medical field and leaving some patients unsure whom to trust.

Pfizer’s 2021 revenue was $81.3 billion, roughly double its revenue in 2020, when its top sellers were a pneumonia vaccine, the cancer drug Ibrance, and the fibromyalgia treatment Lyrica, which had gone off-patent.

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