A black rat in Bee Cave, Texas The best-known rat species are the black rat (Rattus rattus) and the brown rat (Rattus norvegicus). This group, generally known as the Old …

May 3, 2026 · Rat, the term generally and indiscriminately applied to numerous members of several rodent families having bodies longer than about 12 cm, or 5 inches. …

A black rat, Rattus rattus, photographed at the George M. Sutton Avian Research Center. There are dozens of species of rats but black rats and brown rats are the two that …

Rat Basics: Identification and Habitat The term “rat” encompasses several species within the family Muridae, the largest family of mammals. The most familiar species is the …

Apr 27, 2023 · Rats are thin-tailed, medium-size rodents that originated in Asia and Australia but are now found all over the world. "True rats" are members of the genus …

May 21, 2021 · Rat species are found throughout the order Rodentia. Stereotypical rats are found in the genus Rattus, which includes some of the better-known species of rat, …

Mar 17, 2026 · Get to know 14 types of rats from around the world — wild species, beloved pets, and lab animals — with key traits, habitats, and identification tips.

May 27, 2024 · “A rat’s teeth never stop growing” Rats live in places all over the world. They are nocturnal and live in packs. These medium-sized rodents are omnivores …

Rat infestations can quickly get out of hand when people are careless, but Ald. Davis said residents working together can help eliminate the problem. An opening such as this …

Rats thrive globally in varied habitats. Explore their behavior, habitat, and impact on ecosystems and human environments.