All fish are not created equal, at least when it comes to nutritional benefits. This truth has important implications for how declining fish biodiversity can affect human nutrition, according to a computer modeling study.

Researchers found that culture helps humans adapt to their environment and overcome challenges better and faster than genetics. Tim Waring and Zach Wood found that humans are experiencing a 'special evolutionary transition' in which the importance of culture is surpassing the value of genes as the primary driver of human evolution. Due to the group-orientated nature of culture, they also concluded...

New research shows that most extreme heat events are going to occur in the tropics rather than the poles.

Hydrogels are commonly used inside the body to help in tissue regeneration and drug delivery. However, once inside, they can be challenging to control for optimal use. A team of researchers is developing a new way to manipulate the gel -- by using light.

Scientists have detected Zika virus RNA in free-ranging African bats. RNA, or ribonucleic acid, is a molecule that plays a central role in the function of genes.

Researchers have developed a new process using machine learning algorithms to match the signals of a microbe's metabolites with its genomic signals and identify which likely correspond to a natural product. Knowing that, researchers are better equipped to isolate the natural product to begin developing it for a possible drug and possibly reinvigorate the search for natural product drugs.

The mystery of why salamanders can regenerate a lost limb, but adult mammals cannot has fascinated observers for thousands of years. Now, a team of scientists has come a step closer to unraveling that mystery with the discovery of differences in molecular signaling that promote regeneration in the axolotl, a highly regenerative salamander, while blocking it in the adult mouse.

New research investigates the use of microgrids printed with particle-free silver inks, demonstrating its advantages when compared with other particle-based inks.

An analysis of sediment cores from the Bering Sea has revealed a recurring relationship between warmer climates and abrupt episodes of low-oxygen 'dead zones' in the subarctic North Pacific Ocean over the past 1.2 million years. The findings provide crucial information for understanding the causes of low oxygen or 'hypoxia' in the North Pacific and for predicting the occurrence of hypoxic...

Researchers have used a new optical dating technique to directly constrain the age of prehistoric stone artefacts from an archaeological site in southern Tibet. The findings are more than 5,000 years old and thus the oldest evidence of human presence in this part of the Tibetan Plateau.

Researchers have demonstrated 'giant flexoelectricity' in soft elastomers that could improve robot movement range and make self-powered pacemakers a real possibility.

The organization of the human genome relies on physics of different states of matter - such as liquid and solid. The findings reveal how the physical nature of the genome changes as cells transform to serve specific functions and point to new ways to potentially better understand disease and to create improved therapies for cancer and genetic disorders.

A new study sheds light on why many COVID-19 patients, even those not in hospital, are suffering from hypoxia -- a potentially dangerous condition in which there is decreased oxygenation in the body's tissues. The study also shows why the anti-inflammatory drug dexamethasone has been an effective treatment.

A new formula is leading to new insights on how to build an energy-efficient legged teammate for dismounted warfighters.

Engineers have created a means of vastly increasing the speed and efficiency of a key doping process for perovskite solar cells, one that also sequesters CO2.

Researchers detail the mechanism by which HIV infection blocks the maturation process of brain cells that produce myelin, a fatty substance that insulates neurons.

As its name suggests, dark matter -- material which makes up about 85% of the mass in the universe -- emits no light, eluding easy detection. Its properties, too, remain fairly obscure. Now, a theoretical particle physicist have shown how theories positing the existence a new type of force could help explain dark matter's properties.

Researchers found that the sleep quality of the surprisingly high number of children who share a bed with their pets is indistinguishable from those who sleep alone.

Scientists have created a cybersecurity technology called Shadow Figment that is designed to lure hackers into an artificial world, then stop them from doing damage by feeding them illusory tidbits of success. The aim is to sequester bad actors by captivating them with an attractive -- but imaginary -- world. The technology is aimed at protecting physical targets -- infrastructure such as...

Spiders avoid building webs near European fire ants, their natural predators, by sensing the chemicals they give off in the environment, researchers have found. The findings give us a peek inside the enduring struggle between spiders and ants, and could lead to the development of natural repellents for homeowners worried about unwanted eight-legged guests.

The myriad processes occurring in biological cells may seem unbelievably complex at first glance. And yet, in principle, they are merely a logical succession of events, and could even be used to form digital circuits. Researchers have now developed a molecular switching circuit made of DNA, which can be used to mechanically alter gels, depending on the pH. DNA-based switching circuits could have...

It's strawberry season in many parts of the U.S, and supermarkets are teeming with these fresh heart-shaped treats. Although the bright red, juicy fruit can grow almost anywhere with lots of sunlight, production in some hot, dry regions is a challenge. Now, researchers have identified five cultivars that are best suited for this climate, which could help farmers and consumers get the most...

Nano-sized particles have been engineered in a new way to improve detection of tumors within the body and in biopsy tissue, a research team reports. The advance could enable identifying early stage tumors with lower doses of radiation.

Experts have experimentally measured the release of iron from the fecal pellets of krill and salps under natural conditions and tested its bioavailability using a natural community of microalgae in the Southern Ocean.