A lecture at the University of California-San Diego School of Medicine included a slide that drew “parallels between fetuses and cancers.” In response to a Thursday night tweet containing a photo of one of the slides, Twitter users expressed disgust at the language used by the professor, who referred to the fetus as a “legitimate parasite” that “invades” a mother and “manipulates” her immunity. Campus Reform obtained a copy of the full slide deck from the course, titled, "Evolution of Human Disease." The slide in question reveals that the comparison was billed as an attempt to explain the tendency of...