Scientists extract genetic secrets from 4,000-year-old teeth to illuminate the impact of changing human diets over the centuries

Scientists extract genetic secrets from 4,000-year-old teeth to illuminate the impact of changing human diets over the centuries

sciencedaily.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sciencedaily.com Daily Mail and Mail on Sunday newspapers.