Ticks’ host-seeking behavior is called questing. They climb up a plant and wait, stretching out their front legs so they can grab on to an animal as it passes by. They also work together, linking legs and forming a chain so that, if one tick can grab onto a host, others can come along, too. The clustering also helps the ticks avoid drying out. A new review paper in the Annals of the Entomological Society of America examines existing research on the questing habits of larval-stage hard ticks. (Photo by Brenda Leal)