Miami is one of the US' youngest major cities, but it's built atop one of America's oldest Indigenous civilisations. Now, a series of discoveries are unearthing its little-known past.
Plastic bottles holding 2 3 litres are least harmful to the planet newscientist.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from newscientist.com Daily Mail and Mail on Sunday newspapers.