They are mostly found throughout
Asia, primarily in the tropics and subtropics, but with a few genera such as
Rattus,
Micromys (if considered a part of Rattini) and
Nesokia ranging north to temperate regions or west to arid regions. In addition, many species in the genus
Rattus are found throughout
New Guinea and
Australia, making them the only native rodents to the region outside of the
Hydromyini. Only one species (
Micromys minutus, if included) ranges throughout Europe, and another (
Nesokia indica) ranges into northern
Egypt. Several
Rattus species have also been introduced worldwide, and in some cases have become invasive species that have led to the extinction of many animals and plants. Within Asia, the Rattini reach their highest diversity in the tropics of
Southeast Asia, especially in the
Philippines and the
Indonesian island of
Sulawesi. == Species ==