| Species (N=390) | GC (%) | AT (%) | G (bases) | C (bases) | A (bases) | T (bases) | Maximum lifespan (yrs) |
|---|---|---|---|---|---|---|---|
| Trachypithecus obscurus | 35.5 | 64.5 | 87 | 36 | 113 | 110 | 33.9 |
| Trachypithecus pileatus | 36.1 | 63.9 | 90 | 35 | 107 | 114 | 25.2 |
| Trachypithecus vetulus | 36.4 | 63.6 | 86 | 40 | 113 | 107 | 26.1 |
| Tragelaphus angasii | 40.8 | 59.2 | 101 | 40 | 94 | 111 | 18.5 |
| Tragelaphus eurycerus | 39.9 | 60.1 | 100 | 38 | 94 | 114 | 21.9 |
| Tragelaphus imberbis | 41.6 | 58.4 | 101 | 43 | 95 | 107 | 19.8 |
| Tragelaphus scriptus | 40.8 | 59.2 | 101 | 40 | 93 | 112 | 15.3 |
| Tragelaphus spekii | 38.4 | 61.6 | 96 | 37 | 98 | 115 | 22.6 |
| Tragelaphus strepsiceros | 39.0 | 61.0 | 94 | 41 | 102 | 109 | 23.5 |
| Tremarctos ornatus | 42.9 | 57.1 | 93 | 56 | 104 | 94 | 39.0 |
| Trichechus manatus | 43.5 | 56.5 | 105 | 46 | 94 | 102 | 65.0 |
| Trichosurus vulpecula | 40.2 | 59.8 | 100 | 40 | 106 | 102 | 15.9 |
| Tupaia belangeri | 43.8 | 56.2 | 105 | 47 | 91 | 104 | 11.1 |
| Tursiops truncatus | 38.4 | 61.6 | 96 | 37 | 105 | 108 | 51.6 |
| Uncia uncia | 41.5 | 58.5 | 103 | 41 | 94 | 109 | 21.2 |
| Urocyon cinereoargenteus | 40.2 | 59.8 | 88 | 51 | 102 | 105 | 16.2 |
| Ursus americanus | 42.4 | 57.6 | 96 | 51 | 102 | 98 | 34.0 |
| Ursus arctos | 42.4 | 57.6 | 95 | 52 | 103 | 97 | 40.0 |
| Ursus maritimus | 41.9 | 58.1 | 95 | 50 | 103 | 98 | 43.8 |
| Ursus thibetanus | 41.5 | 58.5 | 95 | 49 | 102 | 101 | 39.2 |
| Varecia variegata | 37.6 | 62.4 | 96 | 35 | 102 | 115 | 37.0 |
| Vicugna vicugna | 38.0 | 62.0 | 92 | 40 | 113 | 102 | 31.6 |
| Vombatus ursinus | 37.9 | 62.1 | 93 | 40 | 111 | 107 | 30.0 |
| Vulpes corsac | 41.9 | 58.1 | 99 | 46 | 94 | 107 | 13.0 |
| Vulpes lagopus | 45.5 | 54.5 | 101 | 57 | 94 | 95 | 16.3 |
| Vulpes vulpes | 39.2 | 60.8 | 91 | 45 | 106 | 105 | 21.3 |
| Vulpes zerda | 39.2 | 60.8 | 91 | 45 | 106 | 105 | 16.3 |
| Zaglossus bruijni | 41.4 | 58.6 | 94 | 50 | 113 | 91 | 41.2 |
| Zalophus californianus | 41.0 | 59.0 | 101 | 41 | 92 | 112 | 35.7 |
| Ziphius cavirostris | 38.3 | 61.7 | 97 | 36 | 100 | 114 | 62.0 |