MD
45 news posts
Featured news
13 Jun 2025
Swarm intelligence directs longhorn crazy ants to clear the road ahead for sisters carrying bulky food
Scientists studied the obstacle-clearing behavior of longhorn crazy ants, where a subset of workers temporarily specializes in removing tiny objects blocking the path between the nest and large food items. Experiments revealed that serial clearing behavior can be triggered by a single pheromone mark, which happened to be deposited near an obstacle by a forager recruited to a large food item. Clearing mostly occurs in the context of collective transport, which typically stalls in front of obstacles. The authors concluded that obstacle-clearing is a form of ‘swarm intelligence’ which emerges at the colony level, and which does not require understanding by individual ants.
Health
06 Jun 2025
Statins may reduce risk of death by 39% for patients with life-threatening sepsis
It has been suggested that statins could boost the chances of survival of patients with sepsis because of their multipronged effects on inflammation. Here, researchers from China used the MIMIC-IV database to perform a retrospective cohort study on two large, matched groups: critically ill patients with sepsis in the Beth Israel Deaconess Medical Center who received standard of care with or without statins. The 28-day all-cause mortality was 39% lower in relative terms [an absolute reduction from 23.4% to 14.3%] in the statin group, suggesting a protective effect. Previous randomized controlled trials that didn’t find any such benefit might have been too small or have had other weaknesses. The present results need to be confirmed in a large, well-designed randomized clinical trial.
Featured news
21 May 2025
Biodiversity in Antarctic soils may be greatly underestimated after surprising discovery
Researchers used high-throughput DNA sequencing to measure biodiversity along a transect – a succession from recently exposed to mature soil – in front of a glacier in Antarctica. To capture a detailed ecological ‘time sequence’ they distinguished between intracellular and extracellular DNA from living versus dead or locally extinct species. They found an abundance of previously unsuspected interactions between eukaryotes and prokaryotes, eg, algae with heterotrophic bacteria and fungi with actinobacteria. The results imply that novel mutualistic interactions play an essential role in shaping this system, and that biodiversity in Antarctica may be much greater than previously thought.
Featured news
30 Apr 2025
Deepfakes now come with a realistic heartbeat, making them harder to unmask
Current algorithms for the detection of deepfakes increasingly rely on remote pulse reading to distinguish them from genuine videos of people. Here, scientists show for the first time that the most recent deepfakes feature a global pulse rate which appears realistic. This worrying development makes it necessary for deepfake detectors to become more powerful, for example, by focusing on local variations in blood flow within the face.
Featured news
29 Apr 2025
Are women more metabolically efficient under extreme physiological circumstances?
Authors from the US have now published a new in study in Frontiers in Physiology. They showed that female athletes are rapidly catching up with, and may soon overtake, their male peers in sports events under extreme physiological circumstances.
Featured news
10 Apr 2025
How to protect bumblebee colonies safe from killer moths? Keep honeybee hives away from them
Researchers have shown for the first time that bumblebee colonies are more likely to become infested with bumblebee wax moths as they are closer to nearby honeybee hives, which can likewise host these potentially devastating parasites. As the distance to the apiaries decreased, bumblebee colonies were less productive, while their workers showed a weaker general immune response to pathogens and parasites. The authors advise honeybee keepers to keep apiaries away from habitats rich in bumblebees, which are important pollinators but declining worldwide.
Featured news
26 Mar 2025
Tadpoles try to flee dangerous virus in their pond by growing much faster than normal
Researchers from the US studied the plasticity in growth and development of wood frog larvae in response to the emerging disease ranavirus, which can kill off the entire population of ponds. They showed that tadpoles in infected ponds speed up the rate of growth and progression through the immature stages. They hypothesize that this plasticity boosts their physical condition and hence immune response to ranavirus, and allows them to metamorphose earlier and escape infection.
Featured news
20 Mar 2025
Mere whiff of penguin poo pushes krill to take frantic evasive action
Scientists have shown for the first time that Antarctic krill show a stereotypical reaction in the presence of guano from Adélie penguins: they swim faster and make more turns over greater angles. It is unknown to what kind of water-borne chemical cues they respond, but the authors speculate that this behavior might be a universal escape response to the excreta of predators, irrespective of species.
Featured news
27 Feb 2025
Taking sports science in her stride: how Dr Nerea Casal García aims to maximise performance on the track
Casal García is the corresponding author of a new article in Frontiers in Sports and Active Living, which reveals a pronounced recent shift of stride patterns during elite women's 400 meters hurdle competitions. She has kindly taken the time to share some thoughts about her career and research as part of our Frontier Scientist series.
Featured news
21 Feb 2025
Hurricane-proofed downtown skyscrapers unexpectedly vulnerable to ‘bouncing’ winds
In May 2024, a type of windstorm called derecho caused considerable damage to the facades of Houston’s tall buildings, which had been designed to withstand stronger, hurricane-strength winds. In contrast, hurricane Beryl in July 2024 caused only minimal damage to the same buildings. Researchers analyzed the damage from this derecho and used wind-tunnel modeling to simulate its unique wind loading effects on miniature tall buildings. They concluded that besides interference between groups of tall buildings, the unique characteristics of local events like derechos worsened the structural damage. This finding has implications for the design of future tall buildings and urban planning.
Featured news
14 Feb 2025
Dangerous bacteria lurk in hospital sink drains, despite rigorous cleaning
Researchers from Spain sampled sink drains from different wards in a single modern university hospital where state-of-the-art cleaning protocols are adhered to. Through culturing and DNA barcoding, they found 67 species of bacteria. These included Klebsiella, Enterobacter, and Pseudomonas aeruginosa, notorious for their potential to cause healthcare-associated infections. Several strains detected proved resistant to modern antibiotics, including cephalosporins and carbapenems. Sink drains thus appear to function as reservoirs for known and emerging pathogens of concern.
Featured news
12 Dec 2024
Sleepers made from recycled plastic could make railways even more eco-friendly
Part of the greenhouse gas (GHG) emissions from railways lie in the energy used to produce and maintain the necessary infrastructure. Researchers from Finland here showed the feasibility of using more eco-friendly railway sleepers from two types of recycled plastic, liquid packaging board and acrylonitrile butadiene styrene. Carbon emissions saved each year by phasing out concrete sleepers and replacing them with such recycled plastic could amount to the equivalent of heating for 1,200 Finnish households.
Health
04 Dec 2024
Broken sleep a hallmark sign of living with this common liver disease, scientists find
Researchers from Switzerland have shown that patients with metabolic dysfunction-associated steatotic liver disease (MASLD) suffer poor sleep due to sleep fragmentation and wakefulness. Patients with the more severe form metabolic dysfunction–associated steatohepatitis (MASH) or with cirrhosis, but not healthy volunteers, experienced similar sleep disturbances. Whether poor sleep causes MASLD or vice versa isn’t yet clear. A single sleep hygiene education session proved insufficient to sustainably improve sleep quality and quantity.
Featured news
25 Nov 2024
Viking colonizers of Iceland and nearby Faroe Islands had very different origins, study finds
Geneticists have studied the distribution of Y-chromosome haplogroups on the Faroe Islands, known to have been colonized by Vikings around the year 900 CE, and compared these to distributions of haplogroups in today’s Scandinavia. They showed with novel analysis methods that the haplotype distribution in the Faroe Islands most closely resembled that in Norway and Denmark, and to a lesser extent that in Sweden, but differed from that in Iceland. They concluded that a band of Viking men from all over Scandinavia colonized the Faroe Islands, which differed in their geographical origin and genetic make-up from those who settled Iceland.
Featured news
15 Nov 2024
Students who use dating apps take more risks with their sexual health
Researchers from the US looked for associations between the use of dating apps, sexual behavior, and a history of HIV/STIs among college students in North Texas. They showed that there was an association between risky sexual behavior and the use of dating apps. They propose that the two may be mutually reinforcing.