Examples include leeches
It’s the day of the triathlon, and in the first stage, the worm and the other competitors have to swim across a lake – but when the worm gets out on the other side, she has leeches on an eyelid (annelids).
Examples of annelids
The Freshwater Leech is a parasite that feeds on the blood of fish, frogs, turtles, and mammals.
This is a type of bristle worm that lives in the sea.