At The Scientist: There are more types of beetles than of any other animal—over 400,000 species—and their diversity may have been caused by increased variation in flowering plants and horizontal gene transfer from fungi and bacteria, according to a study published yesterday (November 18) in PNAS.”
Hedging, yes, But there was a time we would have been told about Darwinism. Period.
Paper. (open access)
See also: Horizontal gene transfer: Sorry, Darwin, it’s not your evolution any more