Biology

Credit: Wiley Infections are a dreaded threat that can have fatal consequences after an operation, in the treatment of wounds, and during tissue engineering. Biomimetic hydrogels with “built-in” antimicrobial properties can significantly decrease this danger. In the journal Angewandte Chemie, scientists have now introduced a gel that is activated by red light to produce reactive
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by Emma Spencer, Chris Dickman, Philip Barton and Thomas Newsome, The Conversation Credit: CC0 Public Domain Bushfires this season have left an estimated 1 billion dead animals in their wake, their carcasses dotting the blackened landscape. Adding to the toll, farmers are being forced to euthanize injured and starving livestock and there are also calls
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Wulong bohaiensis. The skeleton described in the new paper is remarkably complete. The name means “Dancing Dragon” in Chinese and was named in part to reference its active pose. Credit: Ashley Poust A new species of feathered dinosaur has been discovered in China, and described by American and Chinese authors and published today in the
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A new paper in The Condor: Ornithological Applications, published by Oxford University Press, finds that models which use terrain features offer both practical and theoretical advantages in identifying climate resilient habitats for migratory birds whose populations are impacted by climate change. Biodiversity is currently dropping at unprecedented rates, in large part to the fragmentation, alteration,
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General morphology of retouched shell tools, Figs C-L are from the Pigorini Museum. Credit: Villa et al., 2020 Did Neanderthals wear swimsuits? Probably not. But a new study suggests that some of these ancient humans might have spent a lot of time at the beach. They may even have dived into the cool waters of
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The detailed analysis of the molecule Chl f, a new type of chlorophyll, which is known to play a part in Photosynthesis Credit: Tokyo University of Science All living organisms need energy for their survival, and this energy indirectly comes from the sun. Some organisms, such as plants, cyanobacteria, and algae, are capable of directly
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Dracoraptor hanigani (theropod) restored as a shoreline-dwelling predator and scavenger. Artwork by Bob Nicholls (paleocreations.com). Credit: Natural History Museum, London. Credit: Science Advances, doi: 10.1126/sciadv.aaw4486 The evolution of endothermy (thermoregulation by metabolic means) represents a major transition in vertebrate history. However, the process of endothermy evolution and its timeline in birds and mammals remains controversial.
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Wombats may not usher other animals into their burrows, but their warrens still protect other species in bushfires. Credit: Liv Falvey/Shutterstock If you’ve been following the bushfire crisis on social media and elsewhere, you may have seen reports of benevolent wombats herding other animals to shelter into their fire-proof burrows. These stories went quickly viral—probably
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Credit: CC0 Public Domain Some forms of camouflage have evolved in animals to exploit a loophole in the way predators perceive their symmetrical markings. The University of Bristol findings, published in Proceedings of the Royal Society B today, describe how animals have evolved to mitigate this defensive disadvantage in their colouration. Most animals with high-contrast
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WPI researcher Jagan Srinivasan (left) and Douglas K. Reilly. Credit: Worcester Polytechnic Institute Researchers at Worcester Polytechnic Institute (WPI) have developed a tool to identify molecular receptors in worms that are involved in sensing pheromones related to mating, an advance that could speed up neuroscience research into pheromones by eliminating months of work. Associate professor
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Ólafur Ögmundarsson, the first author of a new study published in Nature Sustainability, is investigating how LCA’s can guide us towards more sustainable bio-chemical production methods Credit: The Novo Nordisk Foundation Center for Biosustainability Black chemicals from oil pollute. Green ones from biomass don’t. Or is it really so simple? Not necessarily, as demonstrated in
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Silica particle. Credit: Stockholm university Engineered ingestible molecular traps created from mesoporous silica particles (MSPs) introduced to the gut can have an effect on food efficiency and metabolic risk factors. The results from studies on mice, published in Nanomedicine, demonstrate the potential to reduce the energy uptake into the body and could lead to new
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German and Tunisian archaeologists uncover the remains of the Roman bathhouse of Meninx. Credit: MAP, photo: Stefanie Holzem As part of a DFG-funded project, a German-Tunisian team co-directed by LMU archaeologist Stefan Ritter have surveyed the ancient city of Meninx on the island of Jerba and reconstructed its trading links in antiquity. The port of
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Credit: CC0 Public Domain Plants have evolved detoxification defence systems as protection against an array of environmental or pathogen-produced contaminants. Compared with enzymes of primary metabolism, detoxification systems are more flexible and offer a potentially rich repertoire for agricultural and medical applications. But examples of recruiting these systems for metabolic engineering of useful compounds are
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Microbiome research includes clinicians, microbiologists, bioinformaticians and statisticians. Credit: Shutterstock In recent years, our gut microbiome has expanded from the relative obscurity of a culture dish to become firmly established in popular culture. Nicknamed the “second brain” because it affects our mental health and behavior—the gut microbiome is almost considered an organ of its own.
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A transmission emission microscopy image of the endothelial cells surrounding blood vessels. The solid arrows indicate that the nanoparticles (dark spots) are engulfed by the endothelial cells instead of passing through gaps between the cells. Credit: Shrey Sindhwani Researchers from U of T Engineering have discovered that an active, rather than passive, process dictates which
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