Tick Talk: How To Protect Yourself From Lyme Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A male Ixodes ricinus tick (smaller) shown copulating with a female tick (larger). I. ricinus, the "castor bean" tick, is a vector for the B. burgdorferi spirochete, the cause of Lyme disease. ( Centers for Disease Control and Prevention's Public Health Image Library (PHIL) #3809 / Wikimedia Commons ) Produced by WNYC