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ScienceDaily: Plants & Animals 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. |
| 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. |
| The viruses in our genes: When activated, they damage brain development Posted: 20 May 2021 10:37 AM PDT New research shows that activation of distinct human endogenous retroviruses, which are part of our genome, impair brain development dramatically. The finding could help to advance research into therapies for neurodegenerative diseases. |
| Long search finds grain of hope in the glume Posted: 19 May 2021 09:09 AM PDT Researchers have found the elusive genetic element controlling the elongated grains and glumes of a wheat variety identified by the renowned botanist Carl Linnaeus more than 250 years ago. |
| Birds dealing with change -- Mapping migration routes can lead to conservation areas Posted: 19 May 2021 09:08 AM PDT Tracking migratory birds that carry tiny satellite transmitters in featherlight 'backpacks', can teach us a lot about change in the environment. It may also point at possibilities to avoid loss of biodiversity. |
| 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 During a 15-year study of wild bees visiting blueberry fields during their blooming season, researchers caught an unexpected glimpse of how extreme weather events can impact bee populations highlighting the need for more long-term studies, says a Michigan State University researcher. |
| Microbes known as protists are understudied, but their impact on ecosystems could be huge Posted: 19 May 2021 09:08 AM PDT Among the large cast of microbiome players, bacteria have been hogging the spotlight. But the single-celled organisms known as protists are finally getting the starring role they deserve. |
| 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 Researchers report a rapid and sensitive testing method for COVID-19 biomarkers that amplifies the binding signal for a target biomarker and provides detection within one second. |
| New model for infectious disease could better predict future pandemics Posted: 18 May 2021 10:07 AM PDT Scientists provide a framework for a new approach to modeling infectious diseases. It adapts established methods developed to study the planet’s natural systems, including climate change, ocean circulation and forest growth, and applies them to parasites and pathogens that cause disease. |
| Portable, affordable, accurate, fast: Team invents new COVID-19 test Posted: 18 May 2021 08:48 AM PDT A new coronavirus test can get accurate results from a saliva sample in less than 30 minutes, researchers report. Many of the components of the hand-held device used in this technology can be 3D-printed, and the test can detect as little as one viral particle per 1-microliter drop of fluid. |
| Intensive agriculture could drive loss of bees and other tropical pollinators Posted: 18 May 2021 08:42 AM PDT Pollinators in the tropics are less likely to thrive in intensive croplands, finds a new study suggesting bees and butterflies are at risk of major losses. |
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