Rats can hold their breath for three minutes and can tread water for three days. Norway rats (the kind you're likely to see in US cities) can swim as far as half a mile in open water. They can also dive through water plumbing traps and swim through sewer lines against strong water currents. No wonder these little guys have been around for so long!
24 posted on 10/04/2011 6:41:34 AM PDT by Eagle of Liberty
(Shaking My Head on a daily basis)