Brown rat
The brown rat, also referred to as common rat, street rat, sewer rat, Hanover rat, Norway rat, brown Norway rat, Norwegian rat, or wharf rat (Rattus norvegicus) is one of the best known and most common rats. Selective breeding of Rattus norvegicus has produced the laboratory rat, a model organism in biological research, as well as pet rats.
Brown rat
The brown rat, also referred to as common rat, street rat, sewer rat, Hanover rat, Norway rat, brown Norway rat, Norwegian rat, or wharf rat (Rattus norvegicus) is one of the best known and most common rats. Selective breeding of Rattus norvegicus has produced the laboratory rat, a model organism in biological research, as well as pet rats.