Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Casuarius casuarius, 44.4, 55.6, 433, 256, 430, 432, 30.0, Dromaius novaehollandiae, 44.9, 55.1, 443, 253, 427, 428, 16.6,