Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Nasua nasua, 45.8, 54.2, 262, 160, 229, 270, 23.7, Procyon lotor, 44.3, 55.7, 318, 197, 289, 358, 21.0,