Bad Biology

Exactly what it says on the box; bad biology. This can range from completely nonsensical illnesses/cures (athelas cures, like, everything! Colds! Flu! Cancer! Syphilis!), and illogical genetics (I'm descended from Sauron! I have, like, red eyes and black hair!), through to anatomical ignorance (eg. Land Before Time: Littlefoot x Cera - dinosaurs with mammalian sex organs). Fics with poor biology are encountered by most departments, but fics where biological charges are in the majority usually end up in the Department of Bad Slash or Division of Bad Het, although it is arguable that the Department of Mary Sues sees the most illogical genetics, which is a standard feature of Mary Sues. Bad biology often angers Agents, who react in various ways from violently killing the perpetrating OC to thowing themselves in the Fountain of Bleepka, to giving an angry lecture about anatomy involving diagrams. Badficcers who need lectures about biology include the author of That Series, the author of C*l*br**n, and AJ Matthews, who is a frequent user of the Mpreg plot-device and often makes male characters have sex with no lubricant, which is considered a bad biology charge. Bad biology is a large contributor to squick.