... book, Darwin s Black Box: The Biochemical Challengeto Evolution, which argues that living systems at the molecular level are bestexplained as being the result of deliberate intelligent design. Darwin s ... accidental.The very same words were used by Charles Darwin in the Origin of Species indescribing the conditions that had to be met for his theory to be true. As Darwin wrote, if one could find an organ or ... suggested that the TTSS may indeedbe an evolutionary precursor of the flagellum (Aizawa 2001). Nonetheless,until we have produced a step-by-step account of the evolutionary derivationof the flagellum,...