Science

Millions of tiny oysters are being returned to the Chesapeake Bay in an ambitious conservation effort that scientists hope will transform one of the United States’ most important estuaries. The Chesapeake Bay Foundation (CBF), in partnership with the Severn River Association, recently planted three million juvenile oysters in a protected sanctuary reef in Maryland’s Severn…

Before major surgeries and operations, doctors often detect diseases in humans using minimally invasive methods like a blood or urine test, before symptoms become severe. Now, researchers at the Woods Hole Oceanographic Institution (WHOI) are applying a similar concept to coral reefs. They have shown that the water surrounding reefs contains chemical and microbial signals…

Benjamin Franklin (Image: Wikipedia) Life gets measured in years, but it is really defined by what actually happens inside them. A line widely credited to Benjamin Franklin puts that gap sharply. “Many people die at twenty-five and aren’t buried until they are seventy-five,” it goes. It is obviously not describing literal death. It is describing…

Tasmanian devils, dogs and shellfish are some of the only animals that are known to carry naturally occurring cancers that can pass between individuals. But scientists in Vermont have discovered a new animal species that can do the same, catfish. When they researched the mysterious black skin lesions afflicting catfish in Lake Memphremagog and other…

A team of scientists has uncovered a naturally occurring microbial process that could change how uranium-contaminated water is cleaned up. Studying bacteria living in the flooded Königstein uranium mine in Germany, the researchers discovered that certain microorganisms can transform highly soluble uranium into a rare, stable mineral that remains locked in place instead of spreading…

Two people can watch the exact same machine respond to a question and reach completely different conclusions about what just happened. One assumes anything convincing enough must be simulating a mind somewhere underneath. The other insists that convincing behaviour and actual thought are two entirely separate things, no matter how good the imitation gets. Alan…

Researchers clipped a few wing and tail feathers of wild Alaskan kittiwakes (AI enhanced image. Credit: Nature Counts) Researchers who clipped a few wing and tail feathers of wild black-legged kittiwakes in Alaska to make flying harder, have found that the effects lasted well beyond a single breeding season. The birds struggled to raise chicks…

Two hundred years ago, you wouldn’t have been able to find them outside of South America. But since then, Nutria, one of the world’s largest rodents, has taken over US. These rodents were initially brought to North America in the late 19th and early 20th centuries, primarily for fur farming, since their soft underfur was…

Dutch microbiologist Professor Henk Jonkers holds a sample of self-healing concrete, an innovation that uses bacteria to repair cracks automatically. Concrete is the backbone of modern civilisation, supporting everything from homes and skyscrapers to bridges, tunnels and dams. Yet even this remarkably strong material has a costly weakness. Tiny cracks inevitably develop over time because…

In 1976, ornithologist George Archibald began an unusual daily ritual, dancing beside a whooping crane named Tex in an attempt to save one of the rarest birds on the planet. Tex had been raised in captivity and had imprinted on humans rather than other cranes, meaning she showed no interest in mating with her own…