| Species (N=390) | GC (%) | AT (%) | G (bases) | C (bases) | A (bases) | T (bases) | Maximum lifespan (yrs) |
|---|---|---|---|---|---|---|---|
| Neophoca cinerea | 40.6 | 59.4 | 527 | 214 | 479 | 607 | 24.1 |
| Neophocaena phocaenoides | 41.8 | 58.2 | 566 | 196 | 493 | 566 | 33.0 |
| Neotragus moschatus | 39.2 | 60.8 | 524 | 190 | 497 | 610 | 13.5 |
| Neovison vison | 37.0 | 63.0 | 483 | 195 | 529 | 623 | 11.4 |
| Nyctalus noctula | 38.5 | 61.5 | 470 | 228 | 561 | 556 | 12.0 |
| Nyctereutes procyonoides | 39.2 | 60.8 | 510 | 203 | 524 | 584 | 16.6 |
| Nycticebus coucang | 40.8 | 59.2 | 534 | 206 | 506 | 566 | 25.8 |
| Ochotona princeps | 41.8 | 58.2 | 574 | 184 | 480 | 574 | 7.0 |
| Octodon degus | 38.6 | 61.4 | 516 | 184 | 528 | 584 | 14.0 |
| Odocoileus hemionus | 35.7 | 64.3 | 460 | 191 | 554 | 616 | 22.0 |
| Odocoileus virginianus | 35.9 | 64.0 | 461 | 192 | 550 | 615 | 23.0 |
| Okapia johnstoni | 42.3 | 57.7 | 571 | 199 | 455 | 596 | 33.5 |
| Orcaella brevirostris | 39.2 | 60.8 | 538 | 176 | 512 | 595 | 30.0 |
| Orcinus orca | 39.5 | 60.5 | 540 | 180 | 509 | 592 | 90.0 |
| Oreamnos americanus | 37.8 | 62.2 | 505 | 183 | 511 | 622 | 20.8 |
| Oreotragus oreotragus | 37.4 | 62.6 | 500 | 181 | 520 | 620 | 25.9 |
| Ornithorhynchus anatinus | 39.1 | 60.9 | 501 | 209 | 566 | 539 | 22.6 |
| Orycteropus afer | 37.5 | 62.5 | 492 | 189 | 542 | 592 | 29.8 |
| Oryctolagus cuniculus | 38.5 | 61.5 | 490 | 208 | 555 | 559 | 9.0 |
| Oryx dammah | 39.3 | 60.7 | 522 | 194 | 499 | 606 | 27.5 |
| Oryx gazella | 39.4 | 60.6 | 520 | 198 | 500 | 603 | 23.8 |
| Oryx leucoryx | 39.9 | 60.1 | 527 | 200 | 493 | 601 | 20.8 |
| Otolemur crassicaudatus | 43.0 | 57.0 | 585 | 196 | 471 | 563 | 22.7 |
| Ourebia ourebi | 39.3 | 60.7 | 510 | 205 | 505 | 598 | 15.9 |
| Ovibos moschatus | 38.9 | 61.1 | 521 | 187 | 503 | 610 | 27.4 |
| Ovis ammon | 38.7 | 61.3 | 521 | 183 | 501 | 616 | 16.8 |
| Ovis aries | 38.8 | 61.2 | 521 | 186 | 499 | 615 | 22.8 |
| Ovis canadensis | 38.2 | 61.8 | 521 | 175 | 501 | 624 | 20.6 |
| Ozotoceros bezoarticus | 33.7 | 66.3 | 434 | 179 | 583 | 625 | 21.9 |
| Pan paniscus | 43.0 | 57.0 | 600 | 180 | 469 | 563 | 55.0 |
| Pan troglodytes | 43.8 | 56.2 | 603 | 190 | 468 | 551 | 59.4 |
| Panthera leo | 40.7 | 59.3 | 523 | 218 | 512 | 568 | 27.0 |
| Panthera onca | 41.2 | 58.8 | 528 | 222 | 502 | 569 | 28.0 |
| Panthera pardus | 40.4 | 59.6 | 517 | 218 | 518 | 568 | 27.3 |
| Panthera tigris | 41.4 | 58.6 | 526 | 228 | 506 | 561 | 26.3 |
| Papio hamadryas | 43.5 | 56.5 | 598 | 191 | 454 | 569 | 37.5 |
| Pecari tajacu | 39.8 | 60.2 | 535 | 189 | 467 | 630 | 31.5 |
| Peponocephala electra | 39.2 | 60.8 | 537 | 176 | 516 | 590 | 47.0 |
| Perameles gunnii | 34.5 | 65.5 | 448 | 176 | 567 | 618 | 6.1 |
| Perodicticus potto | 41.9 | 58.1 | 561 | 200 | 463 | 594 | 26.8 |