A cat that has fleas will, of course, scratch a lot. And even if
you cannot see the fleas you can find flea dirt, which consists
of reddish brown specks on the back of the cat between the
shoulders. Cats cannot clean easily in that area and therefore
fleas can bite undisturbed. Why you must treat fleas in your
pet's environment Here is a common scenario: You think you have
eliminated all of the fleas from your house, but suddenly
they're back. Remember that you may not have done anything
wrong. What has most likely happened is that the juvenile forms
of the flea, such as the pupae, which have a cocoon to protect
them from most insecticides, may have hatched. You must treat
the environment, inside and out, until there are no fleas
remaining. Outside, wild animals may serve as carriers for flea
populations. Interestingly enough, the common cat flea can
infest over 50 animals around the globe, and some of them are
probably in your neighborhood, whether you live in an urban or a
rural area. In the U.S., coyotes,