Cannabis may have been altering minds at an ancient high-altitude cemetery, researchers say Read more

In the United States, bats are mostly to blame for rabies deaths, while rabies transmitted by overseas dogs comes in second. Read more

Astronomers think they’ve identified a galaxy that hit the Milky Way and ruffled its edges millions of years ago. Read more

Two people born with six fingers on each hand can control the extra digit, using it to do tasks better than five-fingered hands, a study finds. Read more

Researchers have discovered a potential new drug target in a family of viruses responsible for the common cold and more serious infections. Read more

Some knotted string devices point to crop levies imposed by the Incan empire, researchers say. But other khipus continue to evade description. Read more

Police probably won’t stop searching DNA family trees to find crime suspects. New restrictions on database searches could spur more fights over privacy. Read more

New views show how fungi shift their stores of phosphorus toward more favorable markets where the nutrient is scarce. Read more

In 2016, the United States used millions of kilograms of pesticides that are banned or being phased out in the European Union, Brazil and China. Read more

In Symphony in C, geophysicist Robert Hazen explores carbon’s ancient origins, its role in life and its importance in the modern world. Read more