Showing 20 articles starting at article 1641
< Previous 20 articles Next 20 articles >
Categories: Biology: General, Offbeat: Paleontology and Archeology
Published Dangerous bee virus less deadly in at least one US forest
(via sciencedaily.com) Original source Researchers have found that the deadly deformed wing virus (DMV) in bees may have evolved to be less deadly in at least one U.S. forest. The findings could have implications for preventing or treating the virus in managed colonies, researchers said.
Published Geese 'keep calm and carry on' after deaths in the flock
(via sciencedaily.com) Original source Canada geese strengthen existing friendships and forge a few new connections after losing close associates from their flock, new research shows.
Published Non-native species likely to continue spreading in North America, Australia and Europe
(via sciencedaily.com) Original source Naturalized species, which are not native but have established themselves in new locations, have the potential to spread even further to suitable habitats in many parts of the world, reports a new study.
Published Shedding new light on sugars, the 'dark matter' of cellular biology
(via sciencedaily.com) Original source Chemists have developed a new tool for detecting interactions between sugars and lectins, a discovery that could help in the fight against diseases like cancer.
Published Forecasting microbiomes for sustainability and health
(via sciencedaily.com) Original source Microbial communities, or microbiomes, are essential for safeguarding human and environmental health through the most widely used biotechnological process on our planet: biological wastewater treatment. However, the process itself is subject to constant changes, difficult to sustain over long periods of time and emits significant amounts of greenhouse gases.
Published How tiny hinges bend the infection-spreading spikes of a coronavirus
(via sciencedaily.com) Original source Far from being stiff and pointy, a coronavirus's infectious spikes are shaped like chicken drumsticks with the meaty part facing out, and the meaty part can tilt every which way on its slender stalk. A new study suggests that disabling those hinges could block infection.
Published New study reveals surprising insights into feeding habits of carnivorous dinosaurs in North America
(via sciencedaily.com) Original source New research sheds light on the dining habits of ancient carnivorous dinosaurs from Jurassic rocks of the USA. A recent study explores the bite marks left on the ancient bones of the giant long-necked sauropod dinosaurs like Diplodocus and Brontosaurus by carnivorous theropod dinosaurs.
Published A tale of two proteins: Fundamental research could make growing better crops like clockwork
(via sciencedaily.com) Original source Rhomboid-like protein 10, or RBL10, is thought to be an enzyme that degrades other proteins in the chloroplast membrane, but its function is largely unknown. Researchers are studying how RBL10 affects photosynthetic membrane lipid metabolism, an essential process in photosynthesis.
Published Hormonal contraceptives in teens may alter risk assessment, rat study suggests
(via sciencedaily.com) Original source Hormonal contraceptives taken by adolescents may influence development of the brain in a way that alters the recognition of risks, a new study in rats suggests.
Published Some of today's earthquakes may be aftershocks from quakes in the 1800s
(via sciencedaily.com) Original source In the 1800s, some of the strongest earthquakes in recorded U.S. history struck North America's continental interior. Almost two centuries later, the central and eastern United States may still be experiencing aftershocks from those events, a new study finds.
Published Evolution of taste: Early sharks were able to perceive bitter substances
(via sciencedaily.com) Original source New genetic data show that humans and sharks share bitter taste receptors, even though their evolutionary pathways separated nearly 500 million years ago.
Published New discovery on how green algae count cell divisions illuminates key step needed for the evolution of multicellular life
(via sciencedaily.com) Original source An international research team has made an unexpected discovery of a biased counting mechanism used by the single-celled green alga Chlamydomonas to control cell division.
Published How marine bristle worms use a special protein to distinguish between sunlight and moonlight
(via sciencedaily.com) Original source A research team has presented its findings on the functioning of an atypical cryptochrome protein (Cry). These proteins are found in a variety of organisms, and they are often involved in light-controlled biological processes. The marine bristle worm Platynereis dumerilii, for example, employs a special Cry protein designated L-Cry to distinguish between sunlight and moonlight as well as between different moon phases. This is essential for the worms to synchronize their reproduction to the full moon phase via an inner monthly calendar, also called circalunar clock.
Published No scientific evidence for cognitively advanced behaviors and symbolism by Homo naledi
(via sciencedaily.com) Original source A new study casts doubt on claims that Homo naledi, a small-brained hominin dating to between 335-241,000 years ago, deliberately buried their dead and produced rock art in Rising Star Cave, South Africa. Recent articles suggested the recent excavations at the Rising Star Cave system provided evidence of at least three burial features, two in the Dinaledi Chamber and a third in the Hill Antechamber cavity. The group of experts have now called for a deeper dig into the science behind the findings.
Published Mysterious new moth species discovered in Europe
(via sciencedaily.com) Original source European Lepidoptera (butterflies and moths), with a currently known inventory of approximately 11,000 species, are generally considered well-researched. However, a new genus and species from the Geometrid moth family tell a different story. The moth, named Mirlatia arcuata, is one of the most remarkable discoveries in Lepidoptera of recent decades.
Published Ground-breaking discovery could pave the way for new therapies to prevent cardiovascular disease and stroke
(via sciencedaily.com) Original source Researchers have discovered the mechanism by which cholesterol in our diet is absorbed into our cells. This discovery opens up new opportunities for therapeutic intervention to control cholesterol uptake that could complement other therapies and potentially save lives.
Published Endangered turtle population under threat as pollution may lead to excess of females being born
(via sciencedaily.com) Original source Researchers find exposure to heavy metals cadmium and antimony and certain organic contaminants, accumulated by the mother and transferred to her eggs, may cause embryos to be feminized in green sea turtles (Chelonia mydas), a species already at risk of extinction from a current lack of male hatchlings.
Published Forming ice: There's a fungal protein for that
(via sciencedaily.com) Original source New research explores how proteins produced by a common fungus trigger ice nucleation at warm temperatures. The study holds potential implications for improving our understanding of how life affects precipitation and climate.
Published New study indicates C4 crops less sensitive to ozone pollution than C3 crops
(via sciencedaily.com) Original source Researchers have studied the effects of elevated O3 on five C3 crops (chickpea, rice, snap bean, soybean, wheat) and four C4 crops (sorghum, maize, Miscanthus × giganteus, switchgrass). Their findings indicate that C4 crops are much more tolerant of high O3 concentrations than C3 crops.
Published The Goldilocks Effect: Researchers establish framework for protein regulation
(via sciencedaily.com) Original source Researchers are working to understand how protein quality control works in cells.