New research suggests tropical songbirds in both the Old and New Worlds reduce reproduction during severe droughts, and this - somewhat surprisingly -- may actually increase their survival rates.

A new type of breast cancer drug can help halt progression of disease and is not toxic, according to phase 1 clinical trials.

In a new study, researchers show that one way to improve the body's immune response to vaccines is to factor in antigen valency. Valency refers to the number of antibody binding sites on an antigen.

Researchers are preparing to launch clinical trials of a drug used to cure a deadly disease caused by a coronavirus in cats that they expect will also be effective as a treatment for humans against COVID-19.

Researchers outline a method to synthesize complex bioactive molecules much more quickly and efficiently. Using cutting-edge synthetic biology approaches, They were able to produce a large amount of benzylisoquinoline alkaloid (BIA) to synthesize an array of natural and new-to-nature chemical structures in a yeast-based platform. This can provide a blueprint for the large-scale production of...

Baobab trees can live for more than a thousand years and provide food, livestock fodder, medicinal compounds, and raw materials. Scientists counted the significant tree's chromosomes -- information critical for conservation, agricultural improvement, and further genetic work.

Why are men at greater risk than women for more severe symptoms and worse outcomes from COVID-19 regardless of age?

Adults in the United States believe children should be almost 5 years old before talking with them about race, even though some infants are aware of race and preschoolers may have already developed racist beliefs, according to new research.

Public health and safety would benefit from eliminating daylight saving time, according to a position statement from the American Academy of Sleep Medicine.

In a landmark study, scientists using NASA's Hubble Space Telescope have mapped the immense halo of gas enveloping the Andromeda galaxy, our nearest large galactic neighbor.

Covalent cross-links between proteins and DNA are among the most hazardous types of DNA damage. Researchers have now characterized an enzyme that breaks such bonds, and elucidated how it specifically recognizes sites of damage.

Scientists have developed technology to make metallic replicas of soft, natural surfaces such as rose petals. The team's metallic surfaces retained properties of the originals, including a rose petal's sticky, yet water-repelling textures.

A new study finds that Earth's water may have come from materials that were present in the inner solar system at the time the planet formed -- instead of far-reaching comets or asteroids delivering such water. The findings suggest that Earth may have always been wet.

Non-edible plants are a promising alternative to crude oil, but their heterogenous composition can be a challenge to producing high yields of useful products. Scientists have developed a platform that combines different microorganisms that can make a dramatic difference.

A new low-cost diagnostic test for coronavirus disease 2019 (COVID-19) quickly delivers accurate results without the need for sophisticated equipment, according to a new study.

Although helminth infections -- including tapeworms and roundworms -- are among the world's top neglected diseases, they are no longer endemic in Europe. However, researchers report that these infections were common in Medieval Europe, according to grave samples analyzed from across the continent.

Researchers have developed a neurologically acting protein and tested it in laboratory studies. In mice, the experimental compound ameliorated symptoms of certain neurological injuries and diseases, while on the microscopic level it was able to establish and repair connections between neurons. This proof-of-principle study suggests that biologics, which act on neuronal connectivity, could be of...

A half-a-billion years old fossil species of marine animal sheds light on how the anatomies of the two main types of an animal group called the hemichordates are related, and provides new evidence in the historical debate among zoologists. The fossils are over half-a-billion years old and were discovered at a Burgess Shale site in the Canadian Rockies.

Scientists have discovered a previously unknown way that some bacteria produce the chemical ethylene - a finding that could lead to new ways to produce plastics without using fossil fuels. The study showed that the bacteria created ethylene gas as a byproduct of metabolizing sulfur, which they need to survive.

New research shows that safeguarding species and ecosystems and the benefits they provide for society against future climatic change requires effective solutions which can only be formulated from reliable forecasts.

On 11 November 2019, a magnitude 5 earthquake occurred near the village of Le Teil in the Rhône River Valley in southern France producing an unexpected surface rupture with ground displacement. For the first time in France, scientists had the opportunity to use all modern seismological, geodetical, and geological techniques available to study this historically unprecedented seismic event.

A new study finds that people who have antibodies to the mosquito-borne Zika virus are more vulnerable to developing dengue disease. This immune interaction, called antibody-dependent enhancement, could complicate the search for a safe and effective vaccine that protects against Zika without also increasing the risk of dengue.

Princeton Chemistry labs collaborate to demonstrate the ability of photoredox catalysis to take traditionally static stereocenters and render them dynamic by continuously and controllably breaking and re-forming molecular bonds.

Scientists have created the first cell atlas of mosquito immune cells, to understand how mosquitoes fight malaria and other infections. Researchers discovered new types of mosquito immune cells, including a rare cell type that could be involved in limiting malaria infection. The findings offer opportunities for uncovering novel ways to prevent mosquitoes from spreading the malaria parasite to...