"Dr." Sarfati is a creation "scientist" working at CMI (Creation Ministries International), split from Answers in Genesis in 2006. He wrote Refuting Evolution 1 and 2. Sarfati's PhD is in physical chemistry, not biology. He continuously keeps changin' the definition of vestigial, ignoring the main definition (i.e., from Wikipedia, "genetically determined structures or attributes that have apparently lost most or all of their ancestral function in a given species, but have been retained through evolution"). He really should stick to chess.