Using data from 6,645 camera traps across the United States, researchers mapped populations of 25 mammal species. They determined that climate, not human activity, was the primary factor in mammals deciding where to live.
Lampreys possess a ‘jaw-dropping’ evolutionary origin
Lampreys are one of only two living jawless vertebrates Jaws are formed by a key stem cell population called the neural crest New research reveals the gene regulatory changes that may explain morphological differences between jawed and jawless vertebrates.
New understanding of fly behavior has potential application in robotics, public safety
Scientists have identified an automatic behavior in flies that helps them assess wind conditions -- its presence and direction -- before deploying a strategy to follow a scent to its source. The fact that they can do this is surprising -- can you tell if there's a gentle breeze if...
New drug shows promise in clearing HIV from brain
An experimental drug originally developed to treat cancer may help clear HIV from infected cells in the brain, according to a new study. By targeting infected cells in the brain, drug may clear virus from hidden areas that have been a major challenge in HIV treatment.
Nitrogen emissions have a net cooling effect: But researchers warn against a climate solution
An international team of researchers has found that nitrogen emissions from fertilizers and fossil fuels have a net cooling effect on the climate. But they warn increasing atmospheric nitrogen has further damaging effects on the environment, calling for an urgent reduction in greenhouse gas emissions to halt global warming.
Chemical analyses find hidden elements from renaissance astronomer Tycho Brahe’s alchemy laboratory
Danish Tycho Brahe was most famous for his contributions to astronomy. However, he also had a well-equipped alchemical laboratory where he produced secret medicines for Europe's elite.
Solar absorption by black carbon in fire clouds quantified
Aerosol scientists quantify the extent of light absorption by black carbon in fire clouds to better model climate impacts of extreme wildfire events.
Warming has more impact than cooling on Greenland’s ‘firn’
A new study finds disproportionate effects of temperature shifts on an icy glacier layer.
Size doesn’t matter for mammals with more complex brains
Mammals that have evolved more developed brains tend to have a smaller size difference between males and females of that species, according to new research.
Parched Central Valley farms depend on Sierras for groundwater
New research shows California's Central Valley, known as America's breadbasket, gets as much as half of its groundwater from the Sierra Nevadas. This is significant for a farming region that, in some parts, relies almost entirely on groundwater for irrigation.