Letters to the Editor 19235 Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News April 21, 2003 at 5:43 pm The first sentence in this article is incorrect when it refers to “a woman’s placenta.” A woman doesn’t have a placenta, nor does any other mammalian mother. The placenta is an organ of the fetus. The mother’s tissue ends at the uterus lining. Bruce S. SibbettSan Bernardino, Calif. Share this:EmailFacebookTwitterPinterestPocketRedditPrint