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 …

Jul 28, 2025 · While many people are familiar with the common brown or black rats, there are actually dozens of distinct species, each with its own characteristics, behaviors, and ecological …

Nov 5, 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 …

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-tailed …

Jun 26, 2025 · Rats are more than just the creatures we glimpse in city alleys—they come in many fascinating types, from sleek black climbers to curly-coated pets and swamp-dwelling …

Rats are known for their intelligence, social structures, and ability to adapt to various environments. Their behavior is a mix of instinct and learned skills, which allows them to thrive …

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 …

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...

Feb 12, 2025 · ABC News looks at New York City’s fight against rats as city officials and residents take matters into their own hands, uncovering new methods to curb the rat population.

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 …