A new study suggests that music -- and specifically infant-directed song -- evolved as a way for parents to signal to children that their needs are being met, while still freeing up parents to perform other tasks, like foraging for food, or caring for other offspring.
Lawrence Livermore scientists have collaborated with an interdisciplinary team of researchers including colleagues from Sandia National Laboratories to develop an efficient hydrogen storage system that could be a boon for hydrogen powered vehicles.
The findings published Wednesday (Feb. 22, 2017) in the journal Science Advances suggest that Paleoamericans share a last common ancestor with modern native South Americans outside, rather than inside, the Americas and underscore the importance of looking at both genetic and morphological evidence, each revealing different aspects of the human story, to help unravel our species' history.
Expert ecologists at the UK-based Centre for Ecology & Hydrology (CEH) have devised a scientific model which could help predict the spread of the deadly Xylella fastidiosa which is threatening to destroy Europe's olive trees. The CEH scientists have created a model which is able to qualitatively and quantitatively predict how the deadly bacterial pathogen may spread as well as offer guidance on how buffer zones should be arranged to protect uninfected olive trees.
Great Hammerhead sharks have been tagged and tracked across the USA and Bahamas in a bid to shed light on their migration habits. Researchers suggest that these sharks are more at risk than previously thought because of their predictable and seasonal migratory patterns. As an endangered species, the Great Hammerhead shark is in desperate need of effective conservation management. This new information will allow marine planners to improve the protection of this iconic animal.
Mars' mantle may be more complicated than previously thought. In a new study published today in the Nature-affiliated journal Scientific Reports, researchers at LSU document geochemical changes over time in the lava flows of Elysium, a major martian volcanic province.
Only 2 percent of the 78 million tons of manufactured plastics are currently recycled into similar products because polyethylene (PE) and polypropylene (PP), which account for two-thirds of the world's plastics, have different chemical structures and cannot be efficiently repurposed together. That could all change with a discovery by a Cornell University research team.
Waterhemp, a common agricultural weed, has become increasingly resistant to atrazine and other herbicides. Waterhemp uses a class of enzymes known as GSTs to detoxify herbicides, but the exact GST responsible for atrazine resistance was not known until recently. University of Illinois researchers used molecular methods to identify a gene for GST-based atrazine resistance. Knowledge of the gene will allow for easier diagnosis and could lead to the development of more targeted control options.
'Discussions of climate change usually are focused on changes occurring in polar and temperate zones, but tropical regions also are expected to experience changes in regional precipitation,' said Dr. Kirk Winemiller, AgriLife Research fisheries scientist and Regents Professor in the department of wildlife and fisheries sciences at College Station.
NASA has estimated rainfall from the Pineapple Express over the coastal regions southwestern Oregon and northern California from the series of storms in February, 2017.