The laboratory rat, often referred to as Rattus norvegicus, is a common species used in scientific research. These rats are bred specifically for laboratory settings and are valued for their genetic uniformity, rapid reproduction, and adaptability. They play a crucial role in various fields, including medicine, psychology, and toxicology, helping researchers understand diseases and test new treatments. Laboratory rats are typically kept in controlled environments to ensure consistent results in experiments. They are social animals and require mental stimulation, which is why researchers often provide enrichment activities. Their use has contributed significantly to advancements in human and animal health.