Sperm Viability Greatly Reduced in Offspring of Animals Treated With Common Antibiotic Tetracycline

 A research involving a three-generation study of the pseudoscorpion performed by the University of Nevada showed transgenerational effect of antibiotics. It was speculated that antibiotic tetracycline may change the way the genes are expressed, and such epigenetic change in male reproductive tissues could be passed to sons. It was also suggested that this phenomenon may occur in other species.

http://www.sciencedaily.com/releases/2012/04/120427100222.htm