New York rats are primarily Norway (or brown) rats. Their ancestors lived in the wild in northern China and Mongolia, were established in parts of Europe by 1500, and then followed Europeans ...

This is a problem because wild rats can carry pathogens and ... we can get on top of it is if we work together," Brown said. To help keep rats away from residential areas, people can limit the ...

The brown rat, the R. norvegicus ... However, there is a vast and ominous reservoir of plague infection in the wild rodents of the West. During the first epidemic in San Francisco, many rats ...

These giant rats are bred in captivity, but they’re also occasionally crossbred with wild individuals. Selected rats begin training at a very young age, but not all will be suited for the job.

Avian influenza continues to fuel egg shortages. Plus, a delayed CDC study on household cats reveals concerning human ...

Brown rats typically live only a year in the wild, but in that short period they're surprisingly productive — the females give birth up to seven times a year, and each litter can have as many as ...