Using reusable grocery bags is one small way that many of us try to stay more environmentally friendly while shopping. But they can add up fast — you get one as a freebie, pick up a new bag that was ...

Yeast has been growing in the guts of a frozen mummy called Oetzi the Iceman for thousands of years, scientists have discovered, telling AFP they used it to make a sourdough bread. More than 5,300 ...