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Fleas
Less Toxic Home & Garden Despite its name, the cat flea, Ctenocephalides felis, finds dogs and humans quite tasty too. Flea bites cause irritation, but also serious allergies in some animals and humans.
Penn State Fact Sheet
Fleas Fleas are small insects (under 1/4 inch) and are dark brown in color. They lack wings and are extremely narrow side to side, which enables them to move easily through the body hairs.
Ohio State Fact Sheet
Fleas Adult fleas are not only a nuisance to humans and their pets, but can cause medical problems including flea allergy dermatitis (FAD), tapeworms, secondary skin irritations and, in extreme cases, anemia.
Virginia Tech Fact Sheet
Fleas The cooler and drier fall weather brings a reduction in the number of household fleas. However, house pets usually maintain small flea populations throughout the winter, with the numbers increasing slowly in the spring and exploding in mid-to-late summer.