Paul Arnold

Scientists have discovered a galaxy as it was 13 billion years ago, 800 million years after the Big Bang. It contains possible evidence of the universe's first stars and is one of the most chemically primitive galaxies observed ...

Children who get more than 30% of their daily energy from ultra-processed foods (UPFs), such as soda drinks, packaged snacks, and sweetened breakfast cereals, have a nearly fourfold risk of developing asthma in their early ...

Swimming among the corals of the Great Barrier Reef is a fish that could be a doppelganger for the famous Sesame Street character Mr. Snuffleupagus. This bright orange-red, hairy, long-snouted ghost pipefish is a new species ...

We hardly give them a second thought, but everyday objects like bags and backpacks belong to a long technological tradition that may stretch back hundreds of thousands of years.

Silicon carbide (SiC) dust is one of the most important ingredients in cosmic dust, the tiny particles floating throughout the cosmos that eventually give rise to new planets and stars. This compound of silicon and carbon ...

In many primate species, males are much larger than their female counterparts, which is generally attributed to male competition for mates (sexual selection). But bigger bodies may not just be about alpha males defeating ...

Cities are a double-edged sword. They provide plenty of job opportunities, and most of the world's money is made in them, but on the other hand, they create most of the planet's pollution. For decades, the prevailing view ...

Remoras (family Echeneidae) are ray-finned fish that are known to attach themselves to large marine animals, such as whales, sharks, and turtles. They get a free ride and sometimes food, and in return, often provide cleaning ...

Researchers in South Korea have developed a new sign language translation system based on users wearing seven rings equipped with sensors. According to a new study published in the journal Science Advances, the technology ...

Mice do more than just squeak when they want to make a noise. They can also sing. And the way they do it is different from most mammals that produce sounds by vibrating their vocal cords. When Alston's singing mouse (Scotinomys ...

Many people begin each day with a steaming cup of joe to shake off the morning fog and jump-start their brain. Whether it's a shot of espresso or a frothy latte, that caffeine hit is famous for boosting alertness. However, ...

Accurate experiments on how ocean warming affects marine life are vital to ensure we can best prepare for the future, protect our food sources, and help safeguard ocean ecosystems. But some of these experiments may miss how ...

There is an old adage that goes, "you are what you eat," meaning that the food you consume helps build your body and fuel your mind. The same is true now as it ever was. When it comes to early humans, studying what they ate ...

The human brain is an incredible organ, capable of constant adaptation and incredible flexibility. It can learn new skills and incorporate new experiences. And, according to a paper published in the journal Cell Reports, ...

TikTok's algorithm did not treat Democrats and Republicans equally during the 2024 US presidential election. According to a paper published in Nature, its recommendation system showed a Republican-leaning skew in three states. ...