I always think its particularly amusing when people who have web comics take a sudden interest in virology or parasitology. Recently, The Oatmeal produced a comic detailing the life of Dicrocoeliasis dendriticum, a liver fluke that has some interesting intermediate host situations.
Read The Oatmeal's comic "Why Captain Higgins is my favorite parasitic flatworm" here.
All-in-all, he does a pretty good job of detailing significant events, but he would have definitely failed an exam on the subject. Sure, being scientifically correct wouldn't be as funny.
Now, this is the actual life cycle:
And here is a little video by National Geographic on the same subject:
See if you can spot the errors in The Oatmeal's comic.
...and no, I'm not talking about the fact that he has the flatworm talking.