Cymothoa exigua Parasitic crustacean Enters through the gills of its fish host (snapper).

8. Cymothoaexigua • Parasitic crustacean • Enters through the gills of its fish host (snapper). • Attaches to the fish's tongue • Feeds on the rich blood pumping through the artery underneath • Causes the tongue to atrophy and disintegrate. • Eventually it replaces the old tongue with its own body. • Sacculinacarcini • A female sacculina is small • Finds a weak spot in a crab’s shell and injects herself • She grows "roots" wrapping around its eyestalks and deep into its legs and • Eventually steers the Crab for the rest of their co-mingled life • The crab will forgo its own needs • Guinea Worms • Human consumes contaminated water • Infiltrate their host's intestinal walls and commence mating • Males die, females live for a year then head to lower extremities and bore a hole through skin • Lesion begins to fester and burn – want water • If breaks apart could cause a fatal infection • Dr. winds around stick inch-by-inch 3-4wks