Rattus is a genus of rodents that includes species commonly known as rats. These animals are characterized by their long tails, sharp incisors, and adaptability to various environments. The most well-known species within this genus are the brown rat (Rattus norvegicus) and the black rat (Rattus rattus). Rats are found worldwide and often thrive in urban areas, where they can find food and shelter. Rats are social creatures that live in groups, and they are known for their intelligence and problem-solving abilities. They play significant roles in ecosystems as both prey and scavengers. However, some species can be pests, causing damage to crops and spreading diseases, making them a concern for public health and agriculture.