Dog fleas are quite similar to cat fleas, both in appearance and behavior, and just like cat fleas, dog fleas can also breed in both cats and dogs. Both species are so similar biologically, that for practical purpose they are usually defined and talked about under the same heading. Dog and cat fleas are the most common species of fleas found in and around homes. Most of the time, pets like cats and dogs are infested with fleas without their human owners knowing about it. But if there are large numbers of fleas on the pets, humans can