Darwin's Evolutionary Tree 'Annihilated' by Brian Thomas, M.S.* In 1837, Charles Darwin drew his first “evolutionary tree” in his “B” notebook, with the words “I think” scrawled above it, to illustrate his idea that all of today’s species arose from a single common ancestor. But the poor fit of gene sequence data is forcing scientists to abandon the tree.1 “Biologists need to depart from the preconceived notion that all genomes are related by a single bifurcating tree,”2 making way for a new paradigm of origins. A non-Darwinian evolutionary view has been offered, but this proposition is actually just the old...