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  1. Rat - Wikipedia

    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 …

  2. Rat | Rodent Species, Habitats & Characteristics | Britannica

    Dec 26, 2025 · 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 …

  3. Rats - National Geographic

    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...

  4. Rats: Facts about these thin-tailed, medium-size rodents

    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 …

  5. Rat - Description, Habitat, Image, Diet, and Interesting Facts

    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 …

  6. Rats: Facts, Habitat, and Behavior Explained - World Deer

    Rats belong to the family Muridae and the genus Rattus, which includes well-known species like the black rat (Rattus rattus) and the brown rat (Rattus norvegicus). With their strong teeth, …

  7. What are Rats? Rat Facts & Information | EcoGuard

    Dec 2, 2025 · Rats are a small rodent that is closely related to mice and squirrels. They are extremely adaptive and are found all over the world where resources are available. This …

  8. Rats: Facts, Information, and Treatment - fox-pest.com

    Rats are clever, sneaky little rodents that are built to survive just about anywhere. Whether they’re scurrying through city streets or hanging out in the countryside, these rodents know how to …

  9. Rat Animal Facts - Rattus rattus - A-Z Animals

    May 27, 2024 · Rats belong to the rodent family, which is one of the most diverse and widespread mammal groups in the world. The first rodents evolved during the Late Paleocene or Early …

  10. Rat - New World Encyclopedia

    Rats are various medium sized rodents, similar in appearance to mice, but larger. "True rats" are members of the genus Rattus, the most important of which to humans are the black rat, Rattus …