How drought impacts corn yields

Corn is a classic American crop. First cultivated in North America thousands of years ago, it now blankets American farmland from coast to coast. The U.S. grows more corn than any other country. And the grain is used for ...

Researchers explore how chewing affects teeth on the nanoscale

Food leaves permanent traces on teeth. Cows chewing on grass, tigers tearing up a piece of raw meat and humans munching on tortilla chips all end up with tiny scratches and nicks on the enamel of their teeth. Examining these ...