There are 56 known species of rats in the world. [1] The best-known rat species are the black rat (Rattus rattus) and the brown rat (Rattus norvegicus). This group, generally known as the Old World …

Feb 9, 2026 · Rats are generally slender with a pointed head, large eyes, and prominent, thinly furred ears. They have moderately long legs and long, sharp claws. The bald soles of their narrow hind feet …

Often misunderstood, rats are among the most adaptable and intelligent creatures on Earth. These resourceful rodents play a significant, yet often unseen, role in ecosystems worldwide and boast a …

There are dozens of species of rats but black rats and brown rats are the two that most commonly live among humans. What are rats? Much like dogs, though not as beloved, rats are our...

Rats are one of the most adaptable and widespread mammals in the world. These rodents are found on every continent except Antarctica and have thrived alongside humans for centuries.

Dec 2, 2025 · While many rodents are referred to as "rats" due to similarities in appearance and behavior, not all belong to the Rattus genus. The distinction between rats and mice often hinges on …

Apr 27, 2023 · Here's everything you need to know about rats, their habitats, behaviors and more. How big can rats get? With nearly 60 species of rat discovered so far, these rodents come in all sizes.

May 27, 2024 · True rats (Rattus) are medium-sized muroid rodents, many of which are highly adaptable generalists and frequent commensals of humans. Several species are globally widespread …

May 21, 2021 · Rat: medium-sized, long-tailed rodents. Rat species are found throughout the order Rodentia. Stereotypical rats are found in the genus Rattus, which includes some of the better-known …