CHAPEL HILL, NC - When cells grow and divide to ensure a biological function - such as a properly working organ - DNA must be unwound from its typical tightly packed form and copied into RNA to create proteins. When this process goes awry - if too little or too much RNA is produced - then the result could be diseases such as cancers.
Tiny freshwater fish have a view of the world that blows Google Street View out of the water - using different parts of their eyes to deliver optimum uses of colour, black-and-white and ultraviolet.
A zebrafish view of the world has been forensically analysed by researchers at the University of Sussex to reveal that how they see their surroundings changes hugely depending on what direction they are looking.
Vegetation plays an important role in shaping local climate: just think of the cool shade provided by a forest or the grinding heat of the open desert.
But what happens when widespread changes, caused by or in response to global warming, take place across larger areas? Global climate models allow researchers to play out these kinds of thought experiments. The answers that result can serve as a warning or a guide to help policymakers make future land use decisions.
A deep neural network running on an ordinary desktop computer is interpreting highly technical data related to national security as well as - and sometimes better than - today's best automated methods or even human experts.
An international team of researchers has discovered evidence of 27 previously unknown viruses in bees. The finding could help scientists design strategies to prevent the spread of viral pathogens among these important pollinators.
Health impacts of neonicotinoids may go well beyond bees, according to a new University of Guelph study.
U of G researchers found residues of the insecticides in the livers of wild turkeys, providing evidence that this common agrochemical is being ingested by free-ranging animals.
The researchers from the Ontario Veterinary College are among the first to study the broader effects of neonics on wildlife.
American swamp sparrows may have sung the same songs for more than 1,000 years and passed them on through generations by learning, according to researchers at Queen Mary University of London, Imperial College London and Duke University.
The study, published in Nature Communications, demonstrates that birds are capable of matching and potentially exceeding the stability of human cultural traditions despite their much smaller brains.
New York, NY--June 19, 2018--A major challenge in current climate prediction models is how to accurately represent clouds and their atmospheric heating and moistening. This challenge is behind the wide spread in climate prediction. Yet accurate predictions of global warming in response to increased greenhouse gas concentrations are essential for policy-makers (e.g. the Paris climate agreement).
A polar bear plunges into the icy Arctic waters in search of firmer ice; its world, which was once a sea of white, is melting beneath its paws. 'Research has documented declines in polar bear populations in some regions of the Arctic', says Anthony Pagano from the US Geological Survey, explaining that the bears now have to roam further on the receding ice to locate the seals upon which they dine.
High altitude is a particularly challenging environment - the terrain is physically challenging and the land has a relatively poor crop yield, so food can be sparse. Most importantly, oxygen levels are lower meaning that conversion of food into energy in an individual's body is not very efficient and leads to relatively limited energy available for growth.