Dorsal (back) view of the four species of rodent present in New Zealand. From left to right – Norway rat, ship rat, kiore and house mouse. Note the proportional difference in tail length from that of Norway rats: ship rat tails are the same length as their body, whereas Norway rat tails are shorter than the body. The photograph was taken using study skins housed at Auckland Museum.
Photograph: by Jason Froggatt, courtesy Auckland War-Memorial Museum.