ScienceDaily: Top Environment News |
Pandemic paleo: A wayward skull, at-home fossil analyses, a first for Antarctic amphibians Posted: 21 May 2021 08:53 AM PDT Researchers have discovered the first fossil evidence of an ancient amphibian, Micropholis stowi, from Antarctica. Micropholis lived in the Early Triassic, shortly after Earth's largest mass extinction. It was previously known only from fossils in South Africa, and its presence in Antarctica has implications for how amphibians adapted to high-latitude regions in this dynamic period of Earth's history. |
Water treatment: Removing hormones with sunlight Posted: 21 May 2021 08:53 AM PDT Micropollutants such as steroid hormones contaminate drinking water worldwide. Until now, easily scalable water treatment technologies that remove them efficiently and sustainably have been lacking. Scientists have developed a new chemical process for removing hormones. It takes advantage of the mechanisms of photocatalysis and transforms the pollutants into potentially safe oxidation products. |
Entire genome from Pestera Muierii 1 sequenced Posted: 20 May 2021 10:37 AM PDT Researchers have successfully sequenced the entire genome from the skull of Pestera Muierii 1, a woman who lived in today's Romania 35,000 years ago. Her high genetic diversity shows that the out of Africa migration was not the great bottleneck in human development but rather this occurred during and after the most recent Ice Age. |
Survival of migrating juvenile salmon depends on stream flow thresholds Posted: 20 May 2021 10:37 AM PDT Juvenile salmon migrating to the sea in the Sacramento River face a gauntlet of hazards in an environment drastically modified by humans, especially with respect to historical patterns of stream flow. Now fisheries scientists have identified key thresholds in the relationship between stream flow and salmon survival that can serve as actionable targets for managing water resources in the Sacramento River. |
How plants leave behind their parents' genomic baggage Posted: 20 May 2021 10:37 AM PDT Small chemical 'epigenetic' modifications help plants control their genes. Baby plants erase these modifications to start with a fresh genome every generation. Scientists discovered a gene responsible for reinstalling the beneficial modifications important for survival. Reinstalling these modifications on mobile genetic elements called transposons may explain the diversity of flowering plants. |
The viruses in our genes: When activated, they damage brain development Posted: 20 May 2021 10:37 AM PDT |
New tool factors effects of fossil-fuel emissions on ocean research Posted: 20 May 2021 06:51 AM PDT A newly developed tool will allow scientists to better gauge how centuries of fossil fuel emissions could be skewing the data they collect from marine environments. Researchers at the University of Alaska Fairbanks led the effort, which created a way for marine scientists to factor into their results the vast amounts of anthropogenic carbon dioxide that are being absorbed by oceans. |
Earthquake creates ecological opportunity Posted: 20 May 2021 06:50 AM PDT |
Declining biodiversity in Tibet's mountainous regions in response to climate change Posted: 20 May 2021 06:50 AM PDT |
Tree species diversity is no protection against bark beetle infestation Posted: 19 May 2021 01:36 PM PDT |
Long search finds grain of hope in the glume Posted: 19 May 2021 09:09 AM PDT |
Birds dealing with change -- Mapping migration routes can lead to conservation areas Posted: 19 May 2021 09:08 AM PDT |
Michigan is home to 465 bee species and each one plays a role in the states' ecosystems Posted: 19 May 2021 09:08 AM PDT |
Microbes known as protists are understudied, but their impact on ecosystems could be huge Posted: 19 May 2021 09:08 AM PDT |
Scientists take a bite out of solar efficiency challenge with sandwich model Posted: 19 May 2021 09:07 AM PDT |
Groundwater monitoring with seismic instruments Posted: 19 May 2021 09:07 AM PDT |
Study raises new alarm over long-term exposure to second-hand smoke Posted: 19 May 2021 05:04 AM PDT Chronic exposure to second-hand smoke results in lower body weight and cognitive impairments that more profoundly affects males, according to new research in mice. The research examined daily exposure of 62 mice over a period of 10 months. Researchers used a specially designed 'smoking robot' that went through a pack of cigarettes a day in ventilated laboratory space. The longest previous study of this kind lasted three months. |
COVID-19 testing method gives results within one second, researchers report Posted: 18 May 2021 10:08 AM PDT |
New model for infectious disease could better predict future pandemics Posted: 18 May 2021 10:07 AM PDT |
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