“I found this strange-looking, dark brown worm in my toilet, just floating there,” states this reader about the organism pictured below. She thinks it was already there before she used the toilet, and she asks if we know what the creature is.

“I found this worm/larva in the toilet bowl on top of one of my bowel movements,” says this reader about the purplish, brown creature in the photo below. He has no idea if the creature came from him or if it was already in the toilet, and he asks if we can identify it for him.