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The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
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Rare tree species safeguard biodiversity in a changing climate

14 hours 27 min ago
New research suggests that rare species of trees in rainforests may help safeguard biodiversity levels as the environment undergoes change.
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Research demonstrates method to alter coherence of light

14 hours 27 min ago
In a finding that could have broad applications in optical devices, Brown University researchers have shown that they can transform incoherent light to almost fully coherent and vice versa.
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New analysis suggests that preserving rare species is vital to tropical forests

14 hours 27 min ago
The world's tropical forests are in 'a critical state' in which the extinction of rare tree species could be a tipping point, according to an international team of scientists who have developed an analytical method to map their biodiversity.
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Three-quarters of the total insect population lost in protected nature reserves

14 hours 27 min ago
Since 1989, in 63 nature reserves in Germany the total biomass of flying insects has decreased by more than 75 percent. This decrease has long been suspected but has turned out to be more severe than previously thought. Ecologists from Radboud University together with German and English colleagues published these findings in the scientific journal PLOS ONE on Oct. 18.
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New obesity treatment lowers body weight in mice, rats and primates

14 hours 27 min ago
Researchers have created engineered proteins that lowered body weight, bloodstream insulin, and cholesterol levels in obese mice, rats, and primates.
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Dolphin diets suggest extreme changes in the ocean may shorten food chains

14 hours 27 min ago
Extreme marine conditions like El Niño are associated with shorter food chain length in the California Current ecosystem, a new analysis reports. The finding counters previous evidence for long-term stability and ecosystem resilience in nitrogen cycling and food web structure off the
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New study predicts worldwide change in shallow reef ecosystems as waters warm

14 hours 27 min ago
A new study based on the first global survey of marine life by scuba divers has provided fresh insights into how climate change is affecting the distribution of marine life.The research published in the journal Science Advances predicts that as the oceans warm fish -- which appear to be superior predators in warm water -- will extend their ranges away from the equator and cause a decline in the diversity of invertebrates such as crabs, lobsters, sea urchins and whelks.
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Mating induces sexual inhibition in female jumping spiders

14 hours 27 min ago
After mating for the first time, most females of an Australian jumping spider are unreceptive to courtship by other males, and this sexual inhibition is immediate and often lasts for the rest of their lives, according to a study published Oct. 18, 2017, in the open-access journal PLOS ONE by Vivian Mendez from Macquarie University, Australia, and colleagues.
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More than 75 percent decrease in total flying insect biomass over 27 years

14 hours 27 min ago
The total flying insect biomass decreased by more than 75 percent over 27 years in protected areas, according to a study published Oct. 18, 2017, in the open-access journal PLOS ONE by Caspar Hallmann from Radboud University, The Netherlands, and colleagues.
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Oncotarget: Researchers identify novel therapeutic strategy for drug-resistant thyroid cancers

14 hours 27 min ago
New findings by a Harvard Medical School team suggest that palbociclib, a drug that is FDA-approved to treat advanced breast cancer, may be able to overcome vemurafenib resistance in PTC.
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Need for targeted interventions for breastfeeding difficulties due to obesity

14 hours 27 min ago
A study led by the University of Pennsylvania School of Nursing's Diane Spatz, Ph.D., RN-BC, FAAN, the Helen M. Shearer Term Professor of Nutrition, has found that delayed lactogenesis was more prevalent among women who were obese pre-pregnancy and that excessive gestational weight gain was also associated with a delay in lactogenesis II. The study has been published in the Journal of Human Lactation.
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Rapid environmental change makes species more vulnerable to extinction

14 hours 27 min ago
Interactions between species play a key role in shaping biodiversity. A team of researchers including members of UZH has now shown that the coevolution of species that are embedded in complex networks of interactions is not only influenced directly by their partners but also indirectly by other species. This slows down the ability of complex communities to adapt to environmental change. Rapid climate changes are therefore likely to increase species' risk of becoming extinct.
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Understanding the coevolving web of life as a network

14 hours 27 min ago
Coevolution, which occurs when species interact and adapt to each other, is often studied in the context of pair-wise interactions between mutually beneficial symbiotic partners. But many species have mutualistic interactions with multiple partners, leading to complex networks of interacting species. In a new study, a group of ecologists and evolutionary biologists from five universities has attempted to understand how species coevolve within large webs of mutualistic species.
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At tremendous precision, the proton and antiproton still seem identical

14 hours 27 min ago
Using a novel two-particle measurement method, a group of researchers measured the magnetic moment of the antiproton at a precision 350 times higher than any previous measurement. The result, published in Nature, shows that the magnetic moments of the proton and antiproton are tremendously close, meaning that so-called CPT asymmetry -- a key factor in the lack of antimatter -- must be very small if it exists at all.
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Riddle of matter remains unsolved: Proton and antiproton share fundamental properties

14 hours 27 min ago
Physicists in the BASE collaboration at the CERN research center have been able to measure the magnetic force of antiprotons with almost unbelievable precision.
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Inflammation trains the skin to heal faster

14 hours 27 min ago
Scientists have found that stem cells in the skin remember an injury, helping them close recurring wounds faster. The discovery could advance research and treatment of psoriasis and other inflammatory diseases.
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Petals produce a 'blue halo' that helps bees find flowers

14 hours 27 min ago
New study finds 'messy' microscopic structures on petals of some flowers manipulate light to produce a blue colour effect that is easily seen by bee pollinators. Researchers say these petal grooves evolved independently multiple times across flowering plants, but produce the same result: a floral halo of blue-to-ultraviolet light.
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Nature or nurture? Innate social behaviors in the mouse brain

14 hours 27 min ago
The brain circuitry that controls innate, or instinctive, behaviors such as mating and fighting was thought to be genetically hardwired. Not so, neuroscientists now say.
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Solar eruptions could electrify martian moons

14 hours 27 min ago
Powerful solar eruptions could electrically charge areas of the Martian moon Phobos to hundreds of volts, presenting a complex electrical environment that could possibly affect sensitive electronics carried by future robotic explorers, according to a new NASA study. The study also considered electrical charges that could develop as astronauts transit the surface on potential human missions to Phobos.
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For $1000, anyone can purchase online ads to track your location and app use

14 hours 27 min ago
New University of Washington research finds that for a budget of roughly $1000, it is possible for someone to track your location and app use by purchasing and targeting mobile ads. The team hopes to raise industry awareness about the potential privacy threat.
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