Why does your dog rush to "help" when you are searching for something, while your cat seems… eh, less concerned? New research suggests that this difference may stem from deep evolutionary roots—and that, in certain situations, dogs behave more similarly to young children than to cats.
A newly published study co-authored by University of South Florida alum Louis Coticchio and USF integrative biologist Deby Cassill challenges long-standing assumptions about the brown recluse spider, finding the species is both far less common in Florida and far less aggressive than public perception suggests.
Could a Moroccan cave hold a crucial piece of the puzzle of human origins? Hominin fossils dating back 773,000 years discovered in the country are bringing new evidence to the debate about the last common ancestor of present-day humans (Homo sapiens), Neanderthals and Denisovans. The discovery points to a long evolutionary history in north Africa, much earlier than modern Homo sapiens. It also supports Africa's central role in the major stages that shaped the human species.
A new study examining small-scale farming in Tanzania argues that major agricultural development initiatives, including the Alliance for a Green Revolution in Africa (AGRA), are built on flawed assumptions about how rural households make decisions. The research, led by Daniel Tobin of the University of Vermont, finds that household composition, gender dynamics, and labor constraints strongly shape how small-scale farmers allocate land and labor, factors that AGRA and similar programs routinely overlook.
A study by the University of New Hampshire challenges common assumptions about aging and intimacy, revealing that many single adults aged 60 to 83 continue to prioritize sexual activity in their romantic relationships—underscoring the enduring significance of sex for older adults.
Scientists have developed a new edge-of-field water-treatment system that reduces the load of excess nutrients washing into waterways from farm drainage systems. Their method combines a woodchip bioreactor with a two-step biochar water-treatment module. A one-year field trial demonstrated that the system reduced both nitrogen and phosphorus runoff from farmland.
The applications of ultrathin, conductive films such as those made of graphene have many applications, but it's been thought their efficacy is limited to absorbing only half of the incidental light at best. A research group in China has now shown that absorption can be as high as 82.8% at light grazing angles nearly parallel to the film. This could not only significantly improve design efficiencies but sheds light on light-matter interactions at sizes much lower than the light's wavelength. Their work has been published in Physical Review Letters.
We all know we live in three-dimensional space. But what does it mean when people talk about four dimensions? Is it just a bigger kind of space? Is it "space-time," the popular idea which emerged from Einstein's theory of relativity?
Use of chat and text services has surged since the COVID-19 pandemic, according to Rachel Joy Voth Schrag, a UT Arlington professor of social work. Understanding how survivors use these digital channels, she said, is critical for ensuring hotline advocates have the tools they need to support survivor and family safety. New research from The University of Texas at Arlington shows that these digital hotlines are changing how survivors of domestic and sexual violence access safety planning and support.
Researchers from Skoltech have published a paper in the journal Physica D: Nonlinear Phenomena presenting an analysis of steady propagating combustion waves—from slow flames to supersonic detonation waves. The study relies on the authors' mathematical model, which captures the key physical properties of complex combustion processes and yields accurate analytical and numerical solutions. The findings are important for understanding the physical mechanisms behind the transition from deflagration to detonation, as well as for developing safer engines, fuel combustion systems, and protection against unwanted explosions in industrial settings.
