Many bird species are monogamous. However, genetic studies have shown that the social partner is often not the genetic father of all offspring. Some studies found biased sex ratios: more males than females among extra-pair fledglings. This has been interpreted as evidence of adaptive sex allocation by females: if an extra-pair mate is of high quality and this quality has a genetic basis, fitness can be optimized if offspring with the extra-pair mate’s “good” genes are predominantly male. However, there…

Bioinformatics: Publication in Science Bioinformaticians from Heinrich Heine University Düsseldorf (HHU) and the university in Linköping (Sweden) have established that the genes in bacterial genomes are arranged in a meaningful order. In the renowned scientific journal Science, they describe that the genes are arranged by function: If they become increasingly important at faster growth, they are located near the origin of DNA replication. Accordingly, their position influences how their activity changes with the growth rate. Are genes distributed randomly along…

Mechanical compression induces multicellular organization in archaeaIn a discovery that reframes our understanding of life’s fundamental organization, researchers at Brandeis University, the MRC Laboratory of Molecular Biology, and the Max Planck Institute for Biology Tübingen have found that mechanical compression can induce the formation of tissue-like multicellular structures in archaea. This novel finding, focusing on the haloarchaeon Haloferax volcanii, reveals a previously unknown pathway for the emergence of multicellularity within this domain of life, offering new insights into the evolutionary…

Capturing carbon dioxide (CO₂) from industrial emissions is crucial in the fight against climate change. But current methods, like chemical absorption, are expensive and energy-intensive. Scientists have long eyed graphene—an atom-thin, ultra-strong material—as a promising alternative for gas separation, but making large-area, efficient graphene membranes has been a challenge. Now, a team at EPFL, led by Professor Kumar Agrawal, has developed a scalable technique to create porous graphene membranes that selectively filter CO₂ from gas mixtures. Their approach slashes production…