Human-Animal Hybrids

October 19, 2007

Idea_hybrids175 Back in 2006, you probably were as startled as we were when President George W. Bush, during his State of the Union address, implored Congress to bar scientists from “creating human-animal hybrids.” Not accustomed to having our commander in chief veer off on a tangent that sounded suspiciously reminiscent of a plot line from The X-Files, Americans reacted with a mix of puzzlement and derision. Within a day, Technorati.com listed “human-animal hybrid” as the second-most popular search on the Internet, and a Web-based vendor was offering T-shirts emblazoned with a man-monkey so that wearers could  “help President Bush raise awareness about these terrible half man / half beasts.”

As it turns out, Bush wasn’t actually envisioning a nightmarish race of what sci-fi writers refer to as parahumans. Instead, he was up in arms about the possibility of scientists combining human genetic material with animal eggs to produce hybrid embryos, which then could be harvested for stem cells — a possible way of getting around political and religious conservatives’ opposition to the harvesting of stem cells from leftover human embryos from fertility clinics. (Back in 2001, Bush essentially barred the federal government from funding such research, unless scientists relied upon a limited number of existing stem cell lines.)

The controversy has been revived by the recent decision of the U.K.’s Embryology Authority to propose that British scientists be permitted to create hybrid embryos as a source of stem cells, which may possibly provide eventual treatments for Alzheimer’s disease, Parkinson’s disease, and other conditions. Opponents of such research, in a peculiar twist, are winding their way back to what we thought our president was talking about. As the Times of London reported in June, they’re arguing that if scientists are allowed to create human-animal hybrid embryos, in the interests of preserving life, the embryos should then be implanted in women and carried to term, rather than being destroyed. The conceivable result: a generation of infants that are mostly human but also part animal.

So what do you think? Should scientists be permitted to create human-animal embryos, but only for research purposes? Or should they be allowed to go even further, and create manimals? Post your comments below.


About Patrick J. Kiger, Science Writer. Patrick J. Kiger has written from print publications ranging from GQ to the Los Angeles Times, and is a longtime contributor to Discovery.com, HowStuffWorks, and other web sites.

For several years, he wrote the Science Channel's "Is This a Good Idea?" blog, and we are proud to have him back! He's also the author of Science Channel's Story of the Week Feature and Creator of Head Rush Science Experiments for Kids.

Patrick is also the co-author, with Martin J. Smith, of Poplorica: A Popular History of the Fads, Mavericks, Inventions, and Lore that Shaped Modern America HarperResource, 2004), and Oops: 20 Life Lessons from the Fiascoes That Shaped America (Collins, 2006). Both are now available on Kindle.

You can see more of his work at www.patrickjkiger.com


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