Seasonal shifts in behavior — not temperature — may subtly influence sperm motility. Whether this variation in sperm quality ...

The first well-observed "civil war" in wild chimpanzees reveals that shifting social ties alone can fracture a group, ...

A genomic analysis of dozens of ancient Korean skeletons revealed a special "sacrificial caste" of people. When you purchase ...

Scientists discovered that making a very small change to female mice's DNA caused them to develop male reproductive organs.

NASA is gearing up to send astronauts back to the lunar environment for the first time in nearly 55 years. We've broken the ...

It's a running joke that a cure for type 1 diabetes is only five years away and has been for 50 years, but new stem cell trials and immune drugs hint that we're closer than ever to a functional cure ...

Amid drought and heat waves, April's national wildfire forecast shows that nearly the entire Western U.S. will face an ...

CERN scientists transported antimatter by truck for the first time, enabling ultraprecise studies that could reveal why ...

Once described by a 16th-century anatomist as the "shameful member," the clitoris has historically been ignored in research ...

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Chemists say they’ve found a way to turn breadcrumbs into hydrogen, potentially offering a sustainable alternative to one of ...

New research suggests devastating climate outcomes that are typically associated with extreme global warming could hit even ...