Male contraceptive: One step ahead

Nobody has shown an effective, reversible contraception for men. Using on-the-market meds, that goal has now been reached. More »

California’s drought: Blame it on soaring demand for water

Rains will return, but California's drought is permanent. More conservation is the only escape. More »

When sounds accompanying bias-reduction training are replayed during sleep, the anti-bias effect is longer, stronger. More »

As California parches, we look at drought in the "Arab Spring" and China's Great Leap Forward. How are drought and famine related? More »

Why do we love dogs so much? The answer may arise from the reason they love us so much. It's all in the hormones. Honest! More »

Your microbiome affects obesity, infection, asthma. Does the immune system "farm" bacteria? Do bacteria train the immune system? More »

Vaccines. Gene-modified food. Climate. We're awash in science skeptics. Is this an anti-science mood, or something more complicated? More »

If you rate the most common words in 10 major languages, you’ll see people tend to use positive words — around the globe. Surprised? More »

Stem-cell therapy is inching ahead. The study did not prove that it works, but other trials are started up. What took so long? More »

It’s “classic dogma”: Bad bacteria and viruses grow less dangerous over time. Not always! More »

Photosynthesis — creation of sugar from carbon dioxide with solar power — is the basis of life on Earth. Could photosynthesis become More »

World population will reach 9.6 to 12.3 billion by 2100, says a new projection. Instead of relying on expert opinions, the study extrap More »

Some seed corn is covered by 30 patents. Three firms dominate corn and soybean seed producers, and patents are moving faster into More »

As Ebola ravages West Africa, we seek answers in past epidemics. How did cholera, plague, smallpox end? Lacking drugs or a vaccine, how More »

Malaria is declining slowly, but skeeters carry other diseases, including dengue and West Nile. How do mosquitoes reproduce? What are More »