Why winter weather is no match for rats in America's 'rattiest city'
A rat scurries near the Navy Pier Flyover in Chicago on Dec. 18, 2020. - Jose M. Osorio / Chicago Tribune/Chicago Tribune/TNS

CHICAGO – Chicagoans hoping that brutal cold and epic snowfall would wipe out the rat population in America’s “rattiest city” should know: Rats are much tougher than that. Pest control experts told the Tribune a few more rats than normal might die this winter, but this spring we’ll still have a full crop of rattus norvegicus. After all, rats can survive a decade of bombardment by atomic bombs on Pacific atolls. What chance does a few extra inches of snow have? “Rats can survive in tough environments. They’re tough. They’ll burrow underneath the snow as deep as they can and they can survive thi...