Phys.org news
Phys.org / Degraded DNA reveals two extinct Galapagos giant tortoise lineages
Using a new combination of computational tools to analyze ancient DNA, Yale researchers have discovered two ancient, extinct giant tortoise lineages that once lived on the Galapagos Islands.
Phys.org / Tiny oxygen gaps may determine whether next-generation memory films store data well
Researchers have captured in real time the "birth moment" when the performance of a next-generation memory material is determined. The key lies in controlling oxygen vacancies, microscopic defects created when oxygen atoms ...
Phys.org / XY or ZW? Gecko chromosomes reveal evolution's hidden playbook
Why do humans rely on XY chromosomes to determine sex, while birds use ZW—and many reptiles use neither, letting temperature decide instead? Sex determination is remarkably diverse across the animal kingdom. In genotypic ...
Phys.org / Tomatoes get flavor boost from green bin compost
Commercially farmed tomatoes taste sweeter when food and garden waste compost is added to their soil, a University of Queensland study has found. Researchers in the School of Agriculture and Food Sustainability grew tomatoes ...
Phys.org / Species discoveries reveal emerging biodiversity hotspots worldwide
We share our planet with millions of plants and animals. This variety of life is known as biodiversity, a term encompassing everything from microscopic genes to entire ecosystems, such as deserts and vibrant coral reefs.
Phys.org / Cellular 'glue' helps epithelial tissues engulf dead cells while staying sealed
A protein that sticks cells and tissues together has been found to have a surprising second job: helping cells that are packed into a continuous sealed layer, also known as epithelial cells, engulf nearby dead cells.
Phys.org / A few minutes of freezing can change the fate of iron in nature
Just a few minutes of freezing and thawing can have a decisive impact on how ferrihydrite, the most reactive iron mineral in cold soils, permafrost and glaciers, transforms, according to researchers at Umeå University. As ...
Phys.org / Parental care can influence evolution, beetle experiments show
How has offspring dependence on parents evolved over the course of evolution? Researchers at the University of Bayreuth, in collaboration with Kyoto University, Japan, have investigated one possible mechanism by studying ...
Phys.org / Parasitic plants act like genetic engineers by stealing and remodeling useful genes
Many plant species parasitize other plants by latching on and taking the nutrients their hosts need to survive. But sometimes, plants steal more than nutrients; they take genes.
Phys.org / Vehicle-mounted spectroscopy system detects methane in real time
Researchers have developed a vehicle-mounted spectroscopy system that can reliably detect methane in real time while driving. Using a moving vehicle to detect methane could make it easier to locate hidden methane emissions ...
Phys.org / Study reveals inter-city collaboration on emission reduction boosts sustainability performance
With Hong Kong recently recording record-breaking high temperatures, extreme weather has once again raised public awareness of global warming and emission-reduction measures. A large-scale international study led by The Hong ...
Phys.org / Planting fake customer reviews hurts businesses big time, study finds
The capital of any business comes in (at least) two categories. There's the kind that has a price—land, cash holdings, etc.—and a less tangible, priceless kind. Reputational capital falls squarely into the latter category. ...