Table 11. Features of 25 biological eukaryotic networks downloaded from STRING.
| SPECIES | # PROTEINS | # PPIs |
| Anolis carolinensis | 6510 | 31135 |
| Bos taurus | 8474 | 42234 |
| Canis familiaris | 8440 | 42239 |
| Cavia porcellus | 8185 | 42208 |
| Danio rerio | 5720 | 25732 |
| Dasypus novemcinctus | 6850 | 30495 |
| Equus caballus | 8144 | 40703 |
| Felis catus | 7200 | 32547 |
| Gallus gallus | 6409 | 29534 |
| Gasterosteus aculeatus | 6018 | 28276 |
| Homo sapiens | 12575 | 86890 |
| Macaca mulatta | 8787 | 41460 |
| Monodelphis domestica | 7800 | 38002 |
| Mus musculus | 9781 | 52161 |
| Ornithorhynchus anatinus | 6035 | 26467 |
| Oryctolagus cuniculus | 8010 | 39304 |
| Oryzias latipes | 5754 | 26880 |
| Pan troglodytes | 8677 | 44263 |
| Pongo pygmaeus | 8551 | 43984 |
| Rattus norvegicus | 8763 | 39932 |
| Sus scrofa | 6752 | 29852 |
| Taeniopygia guttata | 6271 | 28791 |
| Takifugu rubipres | 5872 | 27077 |
| Tetraodon nigroviridis | 5779 | 25730 |
| Xenopus tropicalis | 6153 | 29769 |