Do fleas eat anything other than blood?
Do fleas eat anything other than blood? Borates kill immature fleas by contaminating their food supply. Because adult fleas feed on fresh blood only, boron insecticides do not control this life stage. What does the human flea commonly feed on? They are external parasites and feed off of the blood of birds and mammals. They normally feed on the blood of animals, but they can also feed on the blood of humans. Fleas don't have wings, but they have flat bodies and strong legs, which allow them to jump long distances. How long do fleas live on humans? Without the...