A close look at a tick’s mouthparts reveals enviable burrowing tools
© Dania Richter
A new look at a tick’s mouthparts shows how the arachnid saws its way through skin and hangs on for up to a week. The castor bean tick Ixodes ricinus, a European species that carries Lyme disease, faces an engineering problem: Its needlelike mouthparts are good at piercing but useless for hanging on during long periods of feeding. And unlike some ticks, this species does not make a cement to anchor itself to its host.