New research brings together 7,000 years of history in South Arabia to show how ancient pastoralists changed placement and construction of monuments over time in the face of environmental and cultural forces.

This study measured the growth rate of coral reefs in Honaunau Bay, Hawaii, using on-site data gathering and aerial imagery. Researchers found that the reefs are being eroded by sea urchin populations which have exploded due to overfishing in the area. The reefs are also threatened by climate change and water pollution, and their growth rates are not fast enough to counteract the erosion caused by the urchins.

Scientists created dye-based molecules that self-assemble into ring-shaped structures, mimicking nature's light-harvesting systems. These stacked rings allow electrons and energy to circulate freely, demonstrating a phenomenon called toroidal conjugation. The work could inspire new materials for solar energy, optoelectronics and next-generation electronic devices.

Researchers compared the whole genome sequence of two genetically distinct lineages of bed bug, and their findings indicate bed bugs may well be the first true urban pest.

Obesity is a global health problem that affects many people. In recent years, very promising anti-obesity drugs have been developed. Despite these successes, there are patients who do not respond to these drugs or suffer from side effects. Therefore, there is still an unmet need for therapies. Researchers have now discovered a small group of nerve cells in the hypothalamus of mouse brains that influence eating behavior and weight gain. This discovery could pave the way for the development of new targeted anti-obesity drugs.

Close to five million smuggled seahorses worth an estimated CAD$29 million were seized by authorities over a 10-year span, according to a new study that warns the scale of the trade is far larger than current data suggest. The study analyzed online seizure records from 2010 to 2021 and found smuggling incidents in 62 countries, with dried seahorses, widely used in traditional medicine, most commonly intercepted at airports in passenger baggage or shipped in sea cargo.

It's tempting to think that, with our fancy electric lights and indoor bedrooms, humanity has evolved beyond the natural influence of sunlight when it comes to our sleep routines. But new research shows that our circadian rhythms are still wild at heart, tracking the seasonal changes in daylight.

An analysis of data from a national health survey conducted before the pandemic found that pizza, soup and chicken are some of the main sources of sodium (salt) intake for people in all racial and ethnic groups. The study also showed clear differences among adults based on race and ethnicity.

A new species of velvet worm, Peripatopsis barnardi, represents the first ever species from the arid Karoo, which indicates that the area was likely historically more forested than at present. In the Cape Fold Mountains, we now know that every mountain peak has an endemic species. This suggests that in unsampled areas there are likely to be additional novel diversity, waiting to be found.

Parasitic worms that infect humans are not interbreeding with those that infect cattle as previously thought. This is good news for when it comes to controlling schistosomiasis, a disease caused by these worms that affects more than 200 million people globally.

The protein DNase1 is one of the oldest biological agents in history: It has been on the market since 1958 and is now used, among other things, to treat cystic fibrosis. However, it takes considerable effort to produce it in immortalized hamster cells. This process is also costly. It would be far more cost-effective to produce it with undemanding yeast cells.

Palaeontologists have analyzed the most complete stegosaurian skull ever found in Europe and rewritten the evolutionary history of this iconic group of dinosaurs.

Scientists have developed a unified theory for mathematical parameters known as gauge freedoms. Their new formulas will allow researchers to interpret research results much faster and with greater confidence. The development could prove fundamental for future efforts in agriculture, drug discovery, and beyond.

Chemists have demonstrated how RNA (ribonucleic acid) might have replicated itself on early Earth -- a key process in the origin of life.

'Biomarkers' may help to improve detection and treatment of gastrointestinal diseases such as gastric cancer, colorectal cancer, and inflammatory bowel disease.

Researchers find high-fat diets set off metabolic dysfunction in cells, leading to weight gain, but these effects can be reversed by treatment with an antioxidant.

A team identified herpes virus saimiri, which infects the T cells of squirrel monkeys, as a source of proteins that activate pathways in T cells that are needed to promote T cell survival.

In a major leap forward for genetic and biomedical research, scientists have developed a powerful new artificial intelligence tool that can predict the 3D shape of chromosomes inside individual cells -- helping researchers gain a new view of how our genes work.

The timing and consistency of your daily activity might be associated with improved cardiorespiratory fitness and walking efficiency.

Scientists show that wolves that are eating sea otters in Alaska have much higher concentrations of mercury than those eating other prey such as deer and moose.