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One shot of an RSV vaccine protects adults ages 60 or older from RSV-associated hospitalization and critical illness during two consecutive RSV seasons, according to a study published in JAMA on August 30 by the IVY Network research group. RSV causes substantial seasonal illness during fall and winter in the U.S., with an estimated 100,000-150,000 hospitalizations and…

A fading sense of smell can be one of the earliest signs of Alzheimer’s disease even before cognitive impairments manifest. Research by scientists at DZNE and Ludwig-Maximilians-Universität München (LMU) sheds new light on this phenomenon, pointing to a significant role for the brain’s immune response, which seems to fatally attack neuronal fibers crucial for the…

Weight loss drugs like Ozempic and Wegovy are used by over 15 million adults in the U.S., or 4.5% of the population. Despite their effectiveness, they have drawbacks. Their effect may not last after discontinuing use, and side effects including osteoporosis and muscle loss have raised concerns about long-term harms. They also induce nausea, which…

Warwick primatologists, in collaboration with the Max Planck Institute, have shown that young orangutans develop their nighttime nest building skills via observational social learning — by closely watching others and then practicing these complex constructions. Nest-building is an often-overlooked behavior in great apes, but for arboreal species, a well-built nest is essential to survival. Nests…

Researchers at Florida Atlantic University’s Harbor Branch Oceanographic Institute have released a landmark review tracing four decades of changes in pelagic sargassum – free-floating brown seaweed that plays a vital role in the Atlantic Ocean ecosystem. Once thought to be primarily confined to the nutrient-poor waters of the Sargasso Sea, sargassum is now recognized as…

Under high-emission scenarios, the Atlantic Meridional Overturning Circulation (AMOC), a key system of ocean currents that also includes the Gulf Stream, could shut down after the year 2100. This is the conclusion of a new study, with contributions by the Potsdam Institute for Climate Impact Research (PIK). The shutdown would cut the ocean’s northward heat…

Helen BriggsBBC environment correspondent and Gwyndaf HughesScience videographer BBC The Druids Oak is the oldest living tree in this woodland in Buckinghamshire Dr Ed Pyne snips a leaf from the Druids Oak, an 800-year-old tree that has watched over this woodland in Buckinghamshire for centuries, enduring droughts, storms, heatwaves and more. “We know that this…