They can either attract from other animals that have them or roll on something that does. There is even a chance that fleas will jump onto your dog.
the flea sucks the dogs blood, therefore the flea benefits, while the dog detriments...
YES!
yes
Fleas suck the dogs blood, and causes itch. The flea is a parasite to the dog.
Advantage once a month topical flea treament for dogs and puppies is one of the highest rated in flea control for dogs. For cats, Revoltion is the best bet.
Possibly if they drink it.
No.
Catching from other dogs/ cats and not being treated
If you have bathed the dog with a flea treating shampoo and then applied frontline flea protecting to the dogs once dried and they are still comming in covered with fleas i would say that there is a serious flea problem/infestation in the area that you are allowing the dogs to be in.
Dogs with scratch, and lick themselves
Because her children had gone to the dogs!
Some effective methods of flea control for dogs are: Cutting and grooming the dog's fur regularly, washing the dog regularly, using anti-flea medication obtained from a veterinarian, quarantining the dog for a period of time.