POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Sheep tick. Coloured scanning electron micrograph (SEM) of the underside of the head of a sheep tick (Ixodes ricinus) showing its mouthparts (centre right). Sheep ticks are vectors for Lyme disease and tick-borne meningoencephalitis in humans, and louping-ill in sheep. Magnification: x72 when printed 10 centimetres wide.
Model release not required. Property release not required.