List by common nameList by scientific name
Click on the first letter of the scientific name.
| Scientific Name | Common Name |
|---|---|
| Odocoileus virginianus clavium | Key deer |
| Okapia johnstoni | Okapi |
| Oncifelis colocolo | Pampas cat |
| Onychogalea fraenata | Bridled nailtail wallaby |
| Orcaella brevirostris | Irrawaddy dolphin |
| Oreailurus jacobita | Andean cat |
| Oreotragus oreotragus | Klipspringer |
| Oryx dammah | Scimitar-horned oryx |
| Oryx gazella | Gemsbok |
| Oryx leucoryx | Arabian oryx |
| Otocolobus manul | Pallas's cat |
| Otomops wroughtoni | Wroughton's free-tailed bat |
| Ourebia ourebi | Oribi |
| Ovis ammon | Argali |
| Ovis orientalis | Mouflon |