It turns out that Canadians have been overusing pesticides, dumping as
many and as much poison as they can on the land in a willy-nilly
fashion in an attempt to beat back the gopher population. This
irresponsible behavior may have created a new pesticide resistant
SUPER GOPHER (AKA: ground squirrel). It's hard to decide whether this
should go in the "Canadia Sucks" or the "Animal Rampage" category.
Some Canadians have speculated that the gophers have simply learned to
avoid poison-laced bait, but most experts agree that gophers will eat
anything, so this explanation doesn't make sense. The most likely
explanation is that the Canadians have unwittingly created a species
of pesticide resistant ground squirrels that will be able to roam with
impunity throughout the North American continent. As with antibiotics,
overuse of pesticides can cause virulent strains that are virtually
unstoppable using today's prophylactic technology.