Jan Bartek – AncientPages.com – ʙuттerflies and moths share “blocks” of DNA dating back more than 200 million years, new research shows. Scientists from the Universities of Exeter (UK), Lübeck (Germany) and Iwate (Japan) devised a tool to compare the chromosomes (DNA molecules) of different ʙuттerflies and moths. African monarch ʙuттerflies and an image of […]