Morning people may have inherited Neanderthal genes
People’s predisposition to wake up early may be linked to inherited genetic variants from Neanderthals, who lived at high latitudes in Europe and Asia and evolved to cope with seasonal variation in daylight.
Full Story: CNN
Lights attract migrating birds into cities at night
Light pollution draws migratory birds flying at night into developed areas where they risk colliding with buildings and facing food scarcity, according to a study of spring and fall bird migration in the continental US. The presence of light pollution is a better predictor of bird densities than factors such as temperature, precipitation or tree canopy cover.
Full Story: The Conversation
Clues for life on Saturn’s moon
Scientists using data from NASA’s Cassini spacecraft have discovered evidence of hydrogen cyanide on Enceladus, an icy ocean moon orbiting Saturn that is home to several key organic molecules. In addition to the confirmation of hydrogen cyanide, which is tied to the origin of life on Earth, researchers suggest that Enceladus’ ocean may be a source of chemical energy through methanogenesis, a process that creates methane.
Full Story: Gizmodo
Emissions may affect precipitation in the US Southwest
The US Southwest has seen less rain and snowfall amid drought since the 1980s, and industrial emissions of smoke, dust and water vapor may help explain the trend. Researchers linked lower precipitation to fluctuating sea temperatures in the Pacific altered by aerosol emissions, which is likely to exacerbate the Southwest’s megadrought.
Full Story: Newsweek
Hormone linked to severe morning sickness
High levels of a fetal hormone contribute to severe nausea and vomiting, or hyperemesis gravidarum, in pregnant people. People who had high levels of GDF15 before getting pregnant were less likely to experience hyperemesis gravidarum than those with low levels of the hormone, suggesting that giving GDF15 before pregnancy could prevent severe sickness in those at high risk.
Full Story: Nature