Rats are typically distinguished from mice by their size. Usually the common name of a large muroid rodent will include the word "rat", while a smaller muroid's name will include "mouse". The common …

Dec 26, 2025 · rat, (genus Rattus), the term generally and indiscriminately applied to numerous members of several rodent families having bodies longer than about 12 cm, or 5 inches. (Smaller thin …

Rats are notorious stowaways that migrated around the world along with humans; today they live wherever Homo sapiens are found, on every continent except Antarctica.

The term “rat” encompasses several species within the family Muridae, the largest family of mammals. The most familiar species is the brown rat (Rattus norvegicus), also known as the Norway rat, and …

May 27, 2024 · A rat uses its whiskers to safely navigate its way through dark tunnels and narrow spaces. Their whiskers are doubly important because these rodents are active during the night.

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 means that anywhere …

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, sharp senses, …

There are about 56 different species of rats. The best known rats are the black rat (Rattus rattus), and the brown rat (Rattus norvegicus). These two are known as Old World rats. The group has its origins …

Oct 3, 2025 · The Rat is the first of all zodiac animals. Learn why Rats are clever and quick thinkers, successful but content with living quiet and peaceful lives.

The meaning of RAT is any of numerous rodents (Rattus and related genera) differing from the related mice especially by considerably larger size. How to use rat in a sentence.