| Species (N=390) | GC (%) | AT (%) | G (bases) | C (bases) | A (bases) | T (bases) | Maximum lifespan (yrs) |
|---|---|---|---|---|---|---|---|
| Inia geoffrensis | 46.1 | 53.9 | 251 | 111 | 211 | 213 | 31.3 |
| Isoodon macrourus | 37.9 | 62.1 | 187 | 110 | 252 | 235 | 6.8 |
| Jaculus jaculus | 44.1 | 55.9 | 233 | 113 | 234 | 204 | 7.3 |
| Kobus ellipsiprymnus | 43.2 | 56.8 | 225 | 114 | 229 | 216 | 30.0 |
| Kobus leche | 42.5 | 57.5 | 224 | 109 | 231 | 220 | 25.4 |
| Kogia breviceps | 47.8 | 52.2 | 243 | 133 | 212 | 198 | 17.0 |
| Lagorchestes hirsutus | 44.4 | 55.6 | 230 | 118 | 236 | 200 | 13.2 |
| Lagothrix lagotricha | 44.1 | 55.9 | 226 | 120 | 211 | 227 | 32.0 |
| Lama glama | 45.0 | 55.0 | 229 | 124 | 228 | 203 | 28.9 |
| Lama guanicoe | 45.0 | 55.0 | 229 | 124 | 230 | 201 | 33.7 |
| Lama pacos | 45.4 | 54.6 | 231 | 125 | 228 | 200 | 25.8 |
| Lemur catta | 41.8 | 58.2 | 210 | 118 | 250 | 206 | 37.3 |
| Leontopithecus rosalia | 42.1 | 57.9 | 220 | 110 | 228 | 226 | 31.6 |
| Lepus europaeus | 41.3 | 58.7 | 205 | 119 | 248 | 212 | 10.7 |
| Lepus timidus | 41.2 | 58.8 | 208 | 115 | 244 | 217 | 18.0 |
| Lipotes vexillifer | 42.5 | 57.5 | 228 | 106 | 222 | 230 | 24.0 |
| Litocranius walleri | 41.5 | 58.5 | 217 | 108 | 242 | 217 | 17.3 |
| Loris tardigradus | 40.7 | 59.3 | 208 | 111 | 232 | 233 | 19.3 |
| Loxodonta africana | 40.3 | 59.7 | 205 | 112 | 252 | 218 | 65.0 |
| Lutra lutra | 45.2 | 54.8 | 236 | 118 | 217 | 213 | 18.2 |
| Lynx lynx | 44.8 | 55.2 | 223 | 128 | 222 | 211 | 23.7 |
| Lynx rufus | 44.6 | 55.4 | 229 | 121 | 214 | 220 | 32.3 |
| Macaca arctoides | 43.9 | 56.1 | 241 | 103 | 217 | 223 | 29.2 |
| Macaca assamensis | 44.9 | 55.1 | 238 | 114 | 221 | 211 | 31.4 |
| Macaca fascicularis | 45.2 | 54.8 | 247 | 107 | 212 | 218 | 39.0 |
| Macaca fuscata | 44.9 | 55.1 | 249 | 103 | 211 | 221 | 38.5 |
| Macaca mulatta | 45.9 | 54.1 | 254 | 106 | 206 | 218 | 40.0 |
| Macaca nemestrina | 44.8 | 55.2 | 251 | 100 | 208 | 225 | 37.6 |
| Macaca nigra | 46.4 | 53.6 | 257 | 107 | 203 | 217 | 34.0 |
| Macaca silenus | 45.8 | 54.2 | 250 | 109 | 209 | 216 | 40.0 |
| Macaca sylvanus | 45.0 | 55.0 | 246 | 107 | 211 | 220 | 29.1 |
| Macaca thibetana | 44.8 | 55.2 | 241 | 110 | 218 | 215 | 27.0 |
| Macaca tonkeana | 45.0 | 55.0 | 249 | 104 | 210 | 221 | 28.4 |
| Macropus giganteus | 43.4 | 56.6 | 227 | 113 | 232 | 212 | 25.0 |
| Macropus robustus | 43.2 | 56.8 | 224 | 115 | 233 | 212 | 22.0 |
| Macroscelides proboscideus | 42.0 | 58.0 | 220 | 109 | 226 | 229 | 8.7 |
| Madoqua kirkii | 44.9 | 55.1 | 234 | 118 | 228 | 204 | 17.3 |
| Mandrillus sphinx | 45.3 | 54.7 | 248 | 107 | 213 | 216 | 40.0 |
| Martes americana | 46.9 | 53.1 | 241 | 127 | 209 | 207 | 17.8 |
| Martes flavigula | 45.8 | 54.2 | 234 | 125 | 221 | 204 | 16.0 |