Philippe Clement / Woody nightshade (Solanum dulcamara) in flower, La Brenne, France

Doug Wechsler / American dog tick (Dermacentor variabilis) adult female, PA, Morris Arboretum, Philadelphia, Pennsylvannia, USA, June.

Joel Sartore / Photo Ark / Tracking shot of an American dog tick (Dermacentor variabilis) female, Lincoln, Nebraska, USA. Controlled conditions.

Doug Wechsler / American dog tick (Dermacentor variabilis), vector for Tularemia and Rocky Mountain Spotted Fever, on wood, Montgomery County, Pennsylvania, USA. June.