Are you a woman? Are you on birth control pills? Are you urinating? If you answered yes to all three questions, then you might be to blame for the recent surge in females in fisheries. Small species of fish have been found to be changing sex in rivers and streams that you pee into. Now, I know you urinate into a toilet (at least I hope so…) but where do you think that urine ends up? It’s cleaned and dumped into a lake, and the estrogens in your birth control are pee’d out and affect the fish population. Think Jurassic Park. So, how can this happen?
Well, when you take a drug, some (if not most) of the time you simply eliminate it by peeing it out, unchanged. Sometimes your liver does most of the work, changing the drug around so you can pee it out easier, but for estrogens, you simply pee it out. This is why you have to take drugs every day, because your body is very good at getting rid of them. This goes for chemotherapy and radiation chemotherapy as well, as your urine could actually be radioactive, but I digress…
So, the medicines you take are leaking into the streams, the fish swim around it and change sexes. So? Well, too many females are a problem (in more ways then one…). You cannot reproduce without males and females, so you can’t make babies. No small fish babies equals no big fish food. No big fish food equals no big fish. No big fish equals no food for us. 
This effect has also been seen in antibiotics as well, causing fish to succumb to superbugs too.
Well, at least there will be more breast meat…Oh wait, that’s chicken. Oh, and the fish’s acne has cleared up, and the sex is much safer…
