Did it keep its flavor? Stone-age 'chewing-gum' yields human DNA
Danish scientists have managed to extract a complete DNA sample from a piece of birch pitch more than 5,000 years old, used as a kind of chewing gum, a study revealed Tuesday. The Stone-Age sample yielded enough information to determine the source's sex, what she ...
National parks a global boost to mental health worth trillions: study
Spending time outdoors has long been known to offer mental health perks, including reduced stress, improved sleep and enhanced cognition. But these public spaces might also benefit the global economy, new research suggests. Visits to national parks around the world may result in improved mental health ...
Japanese team discovers that water on Mars was once 'as salty as ramen soup'
A Japanese research team has found that water believed to have existed on Mars 3.5 billion years ago contained salt and minerals, providing conditions suited to life. The team has said it succeeded in restoring the conditions for water that is believed to have existed ...
