The best-known Rattus species are the black rat (R. rattus) and the brown rat (R. norvegicus). The group is generally known as the Old World rats or true rats and originated in Asia.

Jan 4, 2026 · In scientific usage, rat applies to any of 56 thin-tailed, medium-sized rodent species in the genus Rattus native to continental Asia and the adjacent islands of Southeast Asia eastward to the …

Rattus rattus is a medium sized rat with relatively large ears and a tail that is nearly always longer than the body. Individuals weigh between 70 and 300 g, and are between 16 and 22 cm in head and body …

Aug 31, 2025 · Discover the fascinating world of Rattus species, from their origins to modern-day evolution, and explore the history of these intriguing rodents.

Jan 28, 2014 · Rats are medium-sized rodents belonging to the genus Rattus, characterized by a long tail, slender body, and pointed snout. They are nocturnal, colonial animals that thrive in diverse …

May 27, 2024 · Rattus is the medieval Latin name for a rat. The black rat is also called a house rat. This animal belongs to the Muridae family and the classification Mammalia. Other species include: These …

Rattus rattus, not any of the native nesomyines, is also a reservoir for plague, which has been present in Madagascar for at least a century, and is restricted to two foci above 800 m (Duplantier et al., 2003).

Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people.

Distribution origin: A native species to India, Rattus rattus has spread worldwide, on continental landmasses as well as islands and islets, in urban and rural areas as well as natural areas.

What sets Rattus apart from look-alike small mammals is a mix of brains, agility, and social savvy. They’re quick learners with excellent memories, able to map new spaces after a single night’s …