| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Actinidiaceae (kiwi-fruit family) | 1 | 2 | 0 |
| Actinistia | 1 | 0 | 0 |
| Actinobacteria | 1 | 2 | 0 |
| Actinobacteridae | 2 | 0 | 0 |
| Actinomycetales | 4 | 0 | 0 |
| Actinomycineae | 0 | 0 | 0 |
| Actinopterygii (ray-finned fishes) | 8 | 2 | 0 |
| Actitis Illiger 1811 | 1 | 0 | 0 |
| Actitis hypoleucos (Linnaeus 1758) (Common Sandpiper) | 0 | 2 | 0 |
| Aculeata | 4 | 2 | 0 |
| Acutotyphlops Wallach 1995 | 0 | 2 | 0 |
| Ada | 0 | 2 | 0 |
| Adalia | 2 | 0 | 0 |
| Adalia bipunctata (Linnaeus 1758) (twospotted lady beetle) | 0 | 2 | 0 |
| Adalia decempunctata | 0 | 2 | 0 |
