Domestic dogs come in all shapes and sizes, but the animals we now regard as man’s best friend may have originated from just two populations of wolves, research suggests. The findings, along with studies on other domesticated animals, are providing new insights into how our ancestors' lives and movements transformed these creatures forever.
In remote, rural corners of Malawi, hospitals are often faced with life-and-death decisions. Women in need of emergency caesarean sections, older people with hernias, and children with appendicitis need surgery. But should they be rushed to the operating theatre or transferred to specialists in city hospitals?
Mice that have undergone weight loss surgery experience a change in the composition of their gut bacteria and the functioning of their genes, leading scientists to explore the possibility of mimicking these changes to develop a non-surgical treatment for obesity and liver disease in humans.
Fake news has already fanned the flames of distrust towards media, politics and established institutions around the world. And while new technologies like artificial intelligence (AI) might make things even worse, it can also be used to combat misinformation.
Scientists have revealed the first ever image of a black hole, a major milestone in astrophysics which not only backs up Einstein’s theory of general relativity but also opens up a new era of black hole observations.
The first-ever image of an event horizon – the gravitational boundary of a black hole beyond which light cannot escape – was revealed on 10 April and is the best evidence yet that these phenomena really do exist. It was the result of a global collaboration of hundreds of scientists, using multiple telescopes around the world to pick up the high-frequency radio waves emitted by matter pulled into the event horizon.
The upcoming European elections will reveal how recent challenges such as immigration, the financial crisis, Brexit and the rise of populist parties will play out in the political arena. But the elections are also providing an opportunity for researchers to understand how to better engage voters and ensure the European Union remains relevant to its citizens.
Gravitational waves – the invisible ripples in the fabric of space predicted by Albert Einstein – are opening up a new era of astronomy that is allowing scientists to see parts of the universe once thought to be invisible, such as black holes, dark matter and theoretical subatomic particles called axions.
Dedicated policies and guidelines aim to reduce everyday exposure.
Mental health and free wifi in fast food joints have been raised as pertinent issues, says public health expert.
Notre Dame restoration is a learning opportunity, says historian.