Do Fleas Bite?
Fleas DO bite.
Fleas are parasitic insects that feed on blood for survival. Fleas will find nearly any warm-blooded animal a suitable host. Adult fleas will attach themselves to the host and bite through the host's skin using their piercing, sucking mouthparts to extract blood.
What Does a Flea Look Like?
Fleas are tiny wingless insects, usually smaller than one-twelfth of an inch. They have six legs with flat bodies and are usually brown or black.
Favorite Flea Hosts
Interestingly, According to the Encyclopedia Britannica, fleas are not a problem for monkeys, apes, and ungulates such as the horse though they are warm-blooded. The favorite flea host is the rodent family that includes rats, mice, and squirrels.