Researchers make biosensor one million times more sensitive

Physicists and engineers at Case Western Reserve University have developed an optical sensor, based on nanostructured metamaterials, that's 1 million times more sensitive than the current best available—one capable of identifying ...

Bears' seasonal hibernation linked to changes in gut microbes

Each year, as bears prepare to hibernate, they gorge themselves on food to pack on fat. And yet, despite the rapid weight gain, the animals somehow avoid the health consequences so often associated with obesity in humans. ...

Harbour porpoises need large, oily fish

Harbour porpoises eat approximately ten percent of their body weight in fish per day. Their diet mainly comprises gobies, whiting, sand lances, herring and sprats. These mammals are in constant danger of starvation. Other ...

Climate change negatively affects birth weight, study finds

From melting glaciers to increasing wildfires, the consequences of climate change and strategies to mitigate such consequences are often a hotly debated topic. A new study led by the University of Utah adds to the ever-growing ...

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