Rattus norvegicus (Norway rat)
| Diet | generalist |
| Habitat | varies, urban, non-native but widespread across NA. |
| Description | Tail slightly shorter than body. Color is gray-brown to black. |
| Skull Characteristics | Temporal ridges, do not flare out as much as R. rattus.. Cranium deepest above zygomatic arch, not expanded as R. rattus. |
| Notes | Link to more species information:
Animal Diversity Web |