Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Casuarius casuarius, 42.6, 57.4, 188, 104, 191, 202, 30.0, Dromaius novaehollandiae, 42.2, 57.8, 190, 99, 185, 211, 16.6,