Scientists invent silk food wrap that's biodegradable and could replace plastic cling film
Bananas and strawberries kept at room temperature for more than a week did not go off after they were coated with a near-invisible film made from silk;The Rocky franchise long ago seemed to be on the ropes, but here, fully 40 years after the original, comes the seventh film in the series, and it packs a genuine dramatic punch, says BRIAN VINER.