Why did mammoths and other large mammals of the tundra
suddenly become extinct some 10,000 years ago? It’s a question that has divided
scientists over the years. Now researchers from Lund University in Sweden (and
30 other research teams from 12 countries), have used new DNA technology to
show that a drastic change in the dominant vegetation - from protein-rich herbs
to less nutritious grass – could be behind their demise.