| Species (N=917) | GC (%) | AT (%) | G (bases) | C (bases) | A (bases) | T (bases) | Maximum lifespan (yrs) | 
|---|---|---|---|---|---|---|---|
| Dallia pectoralis | 33.9 | 66.1 | 42 | 15 | 56 | 55 | 8.0 | 
| Dama dama | 29.9 | 70.1 | 44 | 16 | 60 | 81 | 21.1 | 
| Damaliscus lunatus | 34.3 | 65.7 | 52 | 17 | 55 | 77 | 23.6 | 
| Damaliscus pygargus | 33.3 | 66.7 | 51 | 16 | 56 | 78 | 23.0 | 
| Danio rerio | 33.3 | 66.7 | 40 | 15 | 51 | 59 | 5.5 | 
| Dasypus novemcinctus | 32.8 | 67.2 | 52 | 15 | 57 | 80 | 22.3 | 
| Dasyurus hallucatus | 35.7 | 64.3 | 51 | 24 | 67 | 68 | 5.9 | 
| Daubentonia madagascariensis | 35.3 | 64.7 | 59 | 14 | 52 | 82 | 23.3 | 
| Dermophis mexicanus | 24.8 | 75.2 | 35 | 6 | 43 | 81 | 13.8 | 
| Desmodus rotundus | 46.3 | 53.7 | 70 | 23 | 42 | 66 | 29.2 | 
| Dicentrarchus labrax | 44.6 | 55.4 | 56 | 19 | 47 | 46 | 15.0 | 
| Dicerorhinus sumatrensis | 34.8 | 65.2 | 58 | 13 | 51 | 82 | 32.8 | 
| Diceros bicornis | 33.3 | 66.7 | 57 | 12 | 53 | 85 | 49.0 | 
| Didelphis virginiana | 30.0 | 70.0 | 52 | 11 | 59 | 88 | 6.6 | 
| Dorosoma cepedianum | 41.7 | 58.3 | 48 | 22 | 46 | 52 | 6.0 | 
| Dorosoma petenense | 41.7 | 58.3 | 48 | 22 | 47 | 51 | 4.0 | 
| Dromaius novaehollandiae | 45.2 | 54.8 | 67 | 9 | 34 | 58 | 16.6 | 
| Drosophila melanogaster | 16.7 | 83.3 | 20 | 7 | 71 | 64 | 0.3 | 
| Dryocopus pileatus | 47.6 | 52.4 | 67 | 13 | 36 | 52 | 13.0 | 
| Dugong dugon | 34.8 | 65.2 | 59 | 12 | 63 | 70 | 73.0 | 
| Echinops telfairi | 30.0 | 70.0 | 48 | 14 | 68 | 77 | 19.0 | 
| Echymipera rufescens | 29.6 | 70.4 | 49 | 14 | 66 | 84 | 3.1 | 
| Egretta garzetta | 44.6 | 55.4 | 65 | 10 | 39 | 54 | 22.3 | 
| Elaphodus cephalophus | 34.7 | 65.3 | 201 | 91 | 269 | 281 | 22.7 | 
| Elaphurus davidianus | 28.4 | 71.6 | 44 | 13 | 62 | 82 | 27.5 | 
| Elassoma zonatum | 42.3 | 57.7 | 51 | 20 | 48 | 49 | 3.0 | 
| Elephas maximus | 35.3 | 64.7 | 42 | 29 | 66 | 64 | 65.5 | 
| Emberiza aureola | 46.4 | 53.6 | 64 | 14 | 44 | 46 | 7.0 | 
| Engraulis encrasicolus | 39.3 | 60.7 | 46 | 20 | 51 | 51 | 3.0 | 
| Engraulis japonicus | 39.9 | 60.1 | 45 | 22 | 51 | 50 | 3.0 | 
| Enhydra lutris | 36.3 | 63.7 | 53 | 20 | 56 | 72 | 27.0 | 
| Epinephelus areolatus | 45.8 | 54.2 | 59 | 18 | 40 | 51 | 15.0 | 
| Epinephelus coioides | 46.4 | 53.6 | 57 | 21 | 43 | 47 | 22.0 | 
| Eptesicus serotinus | 35.3 | 64.7 | 56 | 16 | 56 | 76 | 21.0 | 
| Equus asinus | 33.8 | 66.2 | 51 | 18 | 57 | 78 | 47.0 | 
| Equus caballus | 35.8 | 64.2 | 53 | 20 | 53 | 78 | 57.0 | 
| Equus grevyi | 34.8 | 65.2 | 54 | 17 | 54 | 79 | 31.0 | 
| Equus hemionus | 33.8 | 66.2 | 53 | 16 | 55 | 80 | 31.6 | 
| Equus kiang | 33.8 | 66.2 | 53 | 16 | 55 | 80 | 30.1 | 
| Equus zebra | 34.8 | 65.2 | 53 | 18 | 54 | 79 | 33.2 |