How to Treat a Jammed Finger - Health Sutra - Duration: 1:54. Health Sutra - Best Health Tips 79,423 views
Brown rat. The brown rat, also referred to as common rat, street rat, sewer rat, Hanover rat, Norway rat, Norwegian rat, or wharf rat (Rattus norvegicus) is one of the best known and most common rats.
many sewer systems were combined foul water and storm water drains, emptying usually into the nearest river or lake. Recently, we have seen the separation of sanitary sewer and storm water drain systems, with sewage treated before it is emptied into a river or lake. The sewer rat successfully made the shift from storm drains to the sanitary sewers.