Updated: 1 hour 17 min ago
Freshwater fish play a surprisingly crucial role in feeding some of the world's most vulnerable people, according to a new study.
A family of small RNA molecules affects the development of cells that give rise to the placenta -- an organ that transfers oxygen and nutrients from mother to fetus -- in ways that could contribute to a serious pregnancy complication, researchers report.
A microbe that ‘eats’ both methane and iron: microbiologists have long suspected its existence, but were not able to find it - until now. Researchers have discovered a microorganism that couples the reduction of iron to methane oxidation, and could thus be relevant in controlling greenhouse gas emissions worldwide.
Researchers have been trying for decades to develop a vaccine against the globally endemic hepatitis C virus (HCV). Now scientists have discovered one reason why success has so far been elusive.
Losing the youthful firmness and elasticity in our skin is one of the first outward signs of aging. Now it seems it's not just our skin that starts to sag, but our brains too.
A new family of self-assembled nanomaterials capable of storing large amounts of tensile strain, without damage to the crystalline structure, is currently being developed by scientists.
Many patients with ulcerative colitis don't receive recommended testing and treatment for the common problem of iron deficiency anemia, reports a new study.
Telling small lies desensitizes our brains to the associated negative emotions and may encourage us to tell bigger lies in future, reveals new research.
For the first time, research has found that human-made noise can have a detrimental impact on an animal’s use of scent – putting them at greater risk of being attacked by predators.
For many people, nanotechnology belongs in the realm of science fiction. Researchers have solved the mystery of the blue sheen on the leaves of some begonias and have found that their chloroplasts have evolved a nanoscale light-trapping structure to help them survive in the darkness of the forest floor.
Tracking atmospheric particles in a pristine environment will help scientists understand the impact of industrial aerosols on climate, say researchers at conclusion of a study on Amazonian rainstorms.
The proportion of cancer deaths attributable to cigarette smoking varied across the United States but was highest in the South, where nearly 40 percent of cancer deaths in men were estimated to be connected to smoking in some states, according to a new article.
Children with persistent postconcussion symptoms reported lower overall, physical, emotional, social and school quality of life for at least 12 weeks after concussion than children whose concussion symptoms resolved more quickly, although even those children reported lower school quality of life, according to a new article.
Scientists have reconstructed the ancient atmospheric carbon dioxide (CO2) record from about 300 million years ago. Their study reveals previously unknown fluctuations of atmospheric CO2 at levels projected for current century, they say. It also highlights the potential impact the loss of tropical forests can have on climate.
Authenticity is an important trait, and zebrafish take it especially seriously. An interdisciplinary team of researchers has discovered that zebrafish engage more with 3D-moving robotic models of themselves than with other stimuli.
A specific detoxification compound, glutathione, helps resist the toxic stresses of everyday life – but its levels decline with age and this sets the stage for a wide range of age-related health problems, scientists have discovered.
Low-frequency vibrations of the Ross Ice Shelf are likely causing ripples and undulations in the air above Antarctica, a new study finds. Using mathematical models of the ice shelf, the study's authors show how vibrations in the ice match those seen in the atmosphere, and are likely causing these mysterious atmospheric waves.
It's no secret humans are social creatures with beliefs that are, literally, all over the map. What wasn't known was how those beliefs are influenced by our social interactions. Now sociologists have developed a mathematical model that describes the relationship between belief systems and interpersonal influence, and what happens when underlying beliefs change.
There is significant variation in how different cultures over time have dealt with the dead. Yet, at a very basic level, funerals in the Sonoran Desert thousands of years ago were similar to what they are today. Bodies of the deceased were buried respectfully, while families and mourners followed certain customs to honor lives lost. At least, most of the time.
Depression is generally considered to be a specific and consistent disorder characterized by a fixed set of symptoms and often treated with a combination of psychotherapy and medication. However, the standard rating scales used by healthcare professionals and researchers to diagnose this disease often differ in the symptoms they list, perhaps explaining why a one-size-fits-all treatment has to date been so ineffective, new research suggests.