Exposed underground variety of rat seen here
[DOC] [TLE] methods of sewer rat control - DigitalCommons@University of ... [PAR] Here, in a protected underground habitat the rodent population is ... driveways, 
and in flower beds, and rats themselves are occasionally seen emerging from ... 
urine and are most easily transmitted to swimmers exposed to contaminated 
water, to ... A wide variety of control methods have been advocated to eliminate 
rats.