科学与环境
Historic duck DNA traces wild mallard genetic changes to more than a century of releases
来源: Phys.org - latest science and technology news stories · 发布于
Researchers have long known that releasing domesticated ducks can alter wild populations. Now, a study led by a doctoral student at The University of Texas at El Paso has documented, for the first time in North America, when and where these genetic changes took place and tied the
Researchers have long known that releasing domesticated ducks can alter wild populations. Now, a study led by a doctoral student at The University of Texas at El Paso has documented, for the first time in North America, when and where these genetic changes took place and tied them directly to more than a century of releases.
相关报道
Researchers highlight ferroptosis's dual roles in plant immunity
When plants encounter pathogens, they can defend themselves by rapidly killing infected cells to restrict pathogen spread. This immune response, known as the hypersensitive response (HR), was first described in 1915. However, the molecular mechanism underlying HR cell death remai
Phys.org - latest science and technology news stories ·
Fractal patterns reveal hidden limits to AI predictability
Researchers at the University of Sydney have identified a fundamental mathematical reason why artificial intelligence systems can learn different behaviors even when trained under almost identical conditions, a discovery that could help improve the reliability and trustworthiness
Phys.org - latest science and technology news stories ·
Earth atmosphere emulators could enable faster and more accurate weather predictions
If you partitioned the entire Earth, from just below the surface to the top of the atmosphere, into 1-kilometer-square chunks, there would be billions of them. Now run each of those cells through a series of complex physics equations, and you can see how the entire Earth system i
Phys.org - latest science and technology news stories ·
Permanent daylight saving time has a dark side, scientists warn
A new study warns that permanent daylight saving time could force American children to make at least 2 billion additional school commutes in darkness, potentially increasing safety risks and disrupting their biological clocks. Researchers found that fatal crashes involving school
All Top News -- ScienceDaily ·
Kids who eat more ultra-processed foods show a troubling brain response
A new study suggests that ultra-processed foods may influence children's developing brains in ways that encourage weight gain. Researchers from USC studied 46 children ages 7 to 10 and found that those who ate more ultra-processed foods showed stronger activity in the brain's rew
All Top News -- ScienceDaily ·