Shortly before New Year's Day, we lost Carl Woese, one of the 20th Century's greatest scientists. It is fitting to use the first blog of 2013 to pay homage to this creative and determined pioneer of molecular phylogenomics.
Was Darwin simply mistaken about the gradual nature of hereditary variation? Such ignorance would be unavoidable before we knew about Mendelian genetics and DNA. Or was there a deeper flaw in the theory that he (and Alfred Russell Wallace) propounded?