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Biology 亚博棋牌平台
October 21, 2020

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Genome Sequencing Shows Climate Barrier to Spread of Africanized Bees

Since the 1950s, 'Africanized' honeybees have spread north and south across the Americas until apparently coming to a halt in California and northern Argentina. Now genome sequencing of hundreds of ...

How Do Snakes 'See' in the Dark? Researchers Have an Answer

Certain species of snake -- think pit vipers, boa constrictors and pythons, among others -- are able to find and capture prey with uncanny accuracy, even in total darkness. Now scientists have ...

Transcription Factors May Inadvertently Lock in DNA Mistakes

A team of researchers has found that transcription factors have a tendency to bind strongly to 'mismatched' sections of DNA, i.e. sections of the genome that were not copied correctly. The strong ...
When temperatures go below a critical limit, sleeping lizards lose their grip and fall out of trees. But when researchers collected the scaled survivors of a record cold ...
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Repairing the Photosynthetic Enzyme Rubisco

Researchers have elucidated how Rubisco activase works. As the name indicates, this enzyme is critical for repairing Rubisco once it has lost its ...

Management of a Popular Game Fish, the Smallmouth Bass

For recreational fishing enthusiasts, the thrill of snagging their next catch comes with discovering what's hooked on the end of the line. In many freshwater streams and rivers -- across the ...

Cheaters Don't Always Win: Species That Work Together Do Better

The sign of a healthy personal relationship is one that is equally mutual - where you get out just as much as you put in. Nature has its own version of a healthy relationship. A team of researchers ...

Tiny Beetles a Bellwether of Ecological Disruption by Climate Change

New research shows that as species across the world adjust where they live in response to climate change, they will come into competition with other species that could hamper their ability to keep up ...

CRISPR-Induced Immune Diversification in Host-Virus Populations

Just like humans, microbes have equipped themselves with tools to recognize and defend themselves against viral invaders. In a continual evolutionary battle between virus and host, CRISPR-Cas act as ...

Prebiotic Chemistry: In the Beginning, There Was Sugar

Organic molecules formed the basis for the evolution of life. But how could inorganic precursors have given rise to them? Chemists now reports a reaction pathway in which minerals catalyze the ...

Light Pollution Alters Predator-Prey Interactions Between Cougars and Mule Deer in Western US

A new study provides strong evidence that exposure to light pollution alters predator-prey dynamics between mule deer and cougars across the intermountain West, a rapidly growing region where ...

AI Methods of Analyzing Social Networks Find New Cell Types in Tissue

In situ sequencing enables gene activity inside body tissues to be depicted in microscope images. To facilitate interpretation of the vast quantities of information generated. Researchers have now ...

High Social and Ecological Standards for Chocolate

Worldwide demand for food from the tropics that meets higher environmental and social standards has risen sharply in recent years. Consumers often have to make ethically questionable decisions: ...

Neurons in a Visual Brain Area of Zebrafish Are Arranged as a Map for Catching Prey

Spotting, pursuing and catching prey - for many animals this is an essential task for survival. Scientists now show in zebrafish that the localization of neurons in the midbrain is adapted to a ...

Natural Killer Cells Also Have a Memory Function

Good news for the human immune system: researchers have managed to ascribe an immunological memory function to a subset of cytotoxic NK cells, which have hitherto been regarded as ...

Tapping Secrets of Aussie Spider's Unique Silk

The basket-web spider, which is found only in Australia, has revealed it not only weaves a unique lobster pot web but that its silk has elasticity and a gluing substance, that creates a high degree ...

Losing Flight Had Huge Benefits for Ants

Researchers have taken detailed scans of worker ants to examine the hypothesis that the loss of flight is directly connected to the evolution of ...

Those Funky Cheese Smells Allow Microbes to 'Talk' to and Feed Each Other

Researchers found that bacteria essential to ripening cheese can sense and respond to compounds produced by fungi in the rind and released into the air, enhancing the growth of some species of ...

Thin tissue grafts and flexible electronics have a host of applications for wound healing, regenerative medicine and biosensing. A new device inspired by an octopus's sucker rapidly transfers ...

Fats Fighting Back Against Bacteria

With antibiotic-resistant superbugs on the rise, this research shows a new way that cells are using to protect themselves - using fats as a covert weapon, and giving us new insights into alternative ...

Researchers have identified a number of 'silent' mutations in the roughly 30,000 letters of the COVID-19 virus's genetic code that helped it thrive once it made the leap from bats and ...

Gel Instrumental in 3D Bioprinting Biological Tissues

The eventual creation of replacement biological parts requires fully three-dimensional capabilities that two-dimensional and three-dimensional thin-film bioprinting cannot supply. Now, using a yield ...

During COVID, Scientists Turn to Computers to Understand C4 Photosynthesis

When COVID closed down their lab, a team of researchers turned to computational approaches to understand what makes some plants better adapted to transform light and carbon dioxide into yield through ...

Ingestible Capsule That Could Help Demystify the Gut-Brain Axis

A team of experts from engineering, neuroscience, applied microbiology, and physics has been making headway on building a platform that can monitor and model the real-time processing of gut ...

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