Flea larvae feed on flea dirt (adult flea feces, if you really want to know — adult flea faeces are actually digested blood of the pet). (lowchensaustralia.com)
The blood of Jesus — not the blood of Peter, Paul, or Polycarp — cleanses us from all unrighteousness. (firstthings.com)
These pests feed off of the blood of your pet causing serious problems such as dermatitis, tapeworm and anemia. (best-cat-art.com)