Selfish sperm hijack Overdrive gene to kill healthy rivals

A new University of Utah-led study has discovered the mechanism behind a decades-old evolutionary mystery—how "selfish chromosomes" cheat the rules of genetic inheritance. The researchers found that rogue chromosomes hijack ...

Turning penicillin into a lethal force against bacteria again

When many disease-causing bacteria encounter penicillin, they are not always destroyed right away, shifting into a temporary survival state called antibiotic tolerance. This state allows them to withstand drug levels that ...

Seals and sea lions provide clues to evolution of vocalization

Neuroscientists have uncovered new insights into a key evolutionary question: Why can humans talk when most animals can't? The journal Science published the research led by Emory University and the New College of Florida. ...

Lost page of legendary Archimedes palimpsest found in France

It all started off as a joke, a French researcher told AFP. But what the team found was a piece of history—a long-lost page from a legendary manuscript by ancient Greek mathematician Archimedes which had been languishing, ...

Shell game: How oysters enlist help from microbes

For an oyster, creating an internal environment for calcification that forms its distinctive hard shell is essential. But new Harvard research has found that these bivalves may outsource the work, coordinating with microbes ...

Wolves kill—and ravens remember where

When a wolf pack runs down its prey, the first on the scene is often the raven. Even before the predators have had time to dig in, the ravens are already in line, waiting to take advantage of the odd scrap of meat that becomes ...

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