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Paul Arnold

Paul Arnold

Author

Paul is a versatile freelance writer with a BSc in Biology from the University of London. He worked at the BBC producing science and medical documentaries, traveling the world interviewing scientists in places like Antarctica and the Canadian High Arctic. He now freelances from sunny southern Spain.

Articles by Paul Arnold

Tech Xplore / Three-in-one process recycles spent lithium batteries, captures CO₂ and generates catalysts—all at room temperature

Scientists from China have developed a new way to recycle lithium batteries that is a triple win for the planet. It not only extracts nearly all the lithium for reuse but also traps carbon dioxide and converts the remaining ...

Jan 24, 2026
Medical Xpress / Cancer tumors may protect against Alzheimer's by cleaning out protein clumps

Cancer and Alzheimer's are two of the most common chronic diseases associated with aging. For years, doctors have known about a curious aspect of these two conditions: people who survive cancers are significantly less likely ...

Jan 24, 2026
Tech Xplore / Swarms of mini robots that 'bloom' could lead to adaptive architecture

Nature is, of course, the master engineer—been there, seen it, solved it. While we struggle to design buildings that don't overheat or feel like concrete cages, nature has been perfecting comfortable living structures for ...

Jan 24, 2026
Medical Xpress / HIV resistance to lenacapavir weakens the virus's ability to replicate

Lenacapavir (LEN) is an antiviral medication used to treat and prevent HIV/AIDS and was first approved for individuals with drug-resistant infections in 2022. While there is still no vaccine for the virus, the twice-yearly ...

Jan 23, 2026
Medical Xpress / Microbes living in our mouths could hold the key to obesity prevention

Scientists may have found a new way to spot early signs of obesity, which could lead to novel prevention strategies. A study published in the journal Cell Reports has discovered that people living with obesity have a distinct ...

Jan 23, 2026
Phys.org / Scientists may have discovered a new extinct form of life

Prototaxites are something of a prehistoric mystery. They were the first giant organisms on land, towering over ancient landscapes at heights of up to 8 meters. They had smooth trunk-like pillars and no branches, leaves or ...

Jan 22, 2026
Tech Xplore / New heat-shrinking method integrates electronic circuits on irregular shapes

Most electronics are built on flat, stiff boards, which makes it incredibly difficult to fit them onto curved and irregular shapes we find in the real world, such as human limbs or curved aircraft wings. While flexible electronics ...

Jan 21, 2026
Phys.org / How European city life is continually rewriting insect DNA

Cities are known to shape the evolution of wildlife within them, but according to a study of European cities published in the journal Proceedings of the Royal Society B: Biological Sciences, this is not a one-off event. Rather ...

Jan 21, 2026
Phys.org / Neanderthals took reusable toolkits with them on high-altitude treks through the Alps

When Neanderthals in Italy were crossing the Alps, it's likely they took refuge in high-altitude bear caves. A new study of stone tools in Caverna Generosa, a cave sitting 1,450 meters up in the mountains, found that these ...

Jan 21, 2026
Phys.org / Howler monkey roars exaggerate body size but are truthful to other howlers

Howler monkeys are relatively small primates known for their incredibly loud, low-frequency roars that sound as if they come from a much larger creature. This is useful in the animal kingdom because sounding big can deter ...

Jan 20, 2026
Phys.org / What deep sea mud is revealing about giant earthquakes along the Pacific Coast

Marine turbidites are layers of mud and sand deposited on the deep ocean floor by massive underwater landslides and are often used as a historical record for reconstructing earthquake histories.

Jan 19, 2026
Phys.org / A shark's energy reserves are linked to how far it travels, suggests new study

For years, researchers have tagged sharks in the world's oceans to learn where they go, how they migrate and where they feed. While these tags have given us a wealth of data about their lives, many questions still remain. ...

Jan 19, 2026
Phys.org / Wildfires trigger massive soil loss for decades, new global map shows

Wildfires are devastating events that destroy forests, burn homes and force people to leave their communities. They also have a profound impact on local ecosystems. But there is another problem that has been largely overlooked ...

Jan 19, 2026
Medical Xpress / Color blindness may reduce early bladder cancer detection and survival

People who are colorblind may be missing a life-saving warning sign of bladder cancer. Analysis of the electronic health records of hundreds of people found that those with color vision deficiency (CVD), or color blindness ...

Jan 17, 2026
Phys.org / Horses can smell human fear when we sweat

Horses can smell your fear. If you are experiencing this emotion while standing near a horse, they will be able to detect it through your scent alone, which changes their behavior and physiology. That's the conclusion of ...

Jan 17, 2026