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Dog flea on dog hair, SEM

Dog flea on dog hair, SEM

C032/3976

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Credit

DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY

Caption

Coloured scanning electron micrograph (SEM) of a common dog flea (Ctenocephalides canis) on dog hair. This flea lives as an ectoparasite on a wide variety of mammals, in particular the domestic dog or cat. This flea serves as the intermediate host of the dog tapeworm (Dipylidium caninum). Although they feed on the blood of dogs and cats, they sometimes bite humans. They can live without food for several months. Females must have a blood meal before they can produce eggs. Dogs often get infested with fleas through contact with other animals or contact with fleas in the environment. The strong back legs of this insect enable it to jump from host to host or from the environment onto the host. The flea's bite can cause itching for the host but for a sensitive or flea-allergic animal, this itching can be quite severe and leads to hair loss, inflammation and secondary skin infections. Magnification: x7 when shortest axis printed at 25.

Release details

Model release not required. Property release not required.

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