Smiling, even with no emotion behind it, may help people tolerate pain.
Humans and cats kept close company in a Chinese village 5,300 years ago.
A tobacco-eating caterpillar creates the equivalent of smoker’s breath to scare off predators.
In Florida, invasive, disease-carrying tiger mosquitoes are breeding in the shells of an invasive snail.
Using mobile phones for medical purposes, a new frontier when we reported on it in 2008, has become a huge field.
Sinking old warships creates new habitats for marine species.
To hit a fastball, a batter’s brain has to predict when it’ll come across the plate.
Researchers have discovered that mosquitoes have a better sense of smell at night.
Some insects’ legs have gears that look and function like the classic man-made invention.
A computer program tells jokes, some of which are judged both original and funny.
Making fish hatcheries more mentally stimulating may increase the fish's chance of survival in the wild.
Climate change may precipitate violence, according to a historical analysis.
Replenishing stored blood’s nitric oxide may make transfusions more effective and less risky.
Compositions from different periods in music history have different mathematical properties.
Using precise numbers may give you an advantage in negotiations.
Humans were polluting the air with lead as far back as 3,900 years ago.
Plants that were frozen in glaciers 400 years ago are growing again as those glaciers melt away.
Giant East African land snails are wreaking havoc in South Florida.
Once the Earth warms to a critical temperature, permafrost in Siberia will melt, releasing massive amounts of carbon.
Mysterious “fairy circles” on African plains are caused by termites, which destroy patches of grass but help the surrounding grass thrive.