ocr: Setting sail, thou- sands of tiny larvae emerge from an aquatic snail in which they com- pleted one stage of their life cycle. Their next destina- tion? Al human host. Living off others is a popular way of life: At least two-thirds of all species arel para- sitic, and many of those are harmful or even deadly. ENAN, BOMPHALAMA GLAMAIAL 07P LAAE SCHETOSOMA MANSOAT
