The amazing evolution of butterflies shows very strange data... https://www.youtube.com/watch?v=sehqKVGQeWI Some more? https://www.washingtonpost.com/news/speaking-of-science/wp/2018/01/10/exquisite-fossils-show-butterflies-appeared-before-there-were-flowers-to-pollinate/?utm_term=.7e202c1213ad