The Black Rat (Rattus rattus) is a species of rodent known for its slender body and long tail. It typically has dark fur, which can vary from black to brown. This rat is often found in urban areas and is known for its agility and climbing ability, making it adept at living in trees and buildings. Historically, the Black Rat is associated with the spread of diseases, including the bubonic plague. It is considered a pest in many regions due to its tendency to invade homes and contaminate food supplies. Despite this, it plays a role in the ecosystem as both a prey and a scavenger.