Home Overview Press Room Blog Publications For Students about us
Search

About Hybrids & Chimeras


Hybrid animals are created when gametes (reproductive cells) from different species join to form a single embryo. A mule, for example, is the offspring of a female horse and a male donkey. Every cell in the body of hybrids contains genetic material from both parents.

Chimeras, named after creatures from Greek mythology, are created artificially by combining genetic material from different species into a single embryo. The adult animals that develop have different populations of cells that reflect different contributions from the species from which they were produced. Scientists have created the geep, for example, by combining genetic material from both a goat and a sheep.

Partially human hybrid embryos have been created by fusing human cells and animal eggs, and partially human chimeric embryos have been created by injecting human embryonic stem cells into animal embryos. Most scientists want to produce such embryos only for research, and oppose experiments that would allow human-animal chimeras to be brought to term.

The prospect of human-animal chimeras troubles many people and raises troubling questions about their moral and legal status. Would a human-animal chimera have human rights? Could it be patented and owned? What if it were 99.9% human and 0.1% chimpanzee? What of the reverse situation?



New Ways to Engineer the Germlineby Jessica CussinsBiopolitical TimesDecember 18th, 2013A look at a number of emerging techniques that could compromise the international consensus against human inheritable genetic modification.
At the End of the Slippery Slope: Margaret Atwood’s MaddAddam Trilogyby George Estreich, Biopolitical Times guest contributorSeptember 24th, 2013Atwood says her trilogy "invents nothing we haven’t already invented or started to invent" — suggesting that though her work is fiction and not a tract, she also intends to do far more than entertain.
"Democratizing Creation" with Synthetic Biology and Glowing Plantsby Pete ShanksBiopolitical TimesJune 27th, 2013A San Francisco company has raised nearly $500,000 via KickStarter to develop and distribute luminescent mustard plants and roses, in an apparent effort to jump-start commercial synthetic biology.
Japan to Relax Ban on Chimeric Embryo Experimentsby Dennis NormileScienceJune 19th, 2013A scientist pioneering research toward generating human organs in pigs has cleared one hurdle in Japan, but is concerned that finalizing guidelines will take too long, so is considering conducting key experiments in the United States.
Watch and Listen: Two Conversations about the Dangers of Genetically Modified Humans Biopolical TimesJune 12th, 2013At a live event and in a radio interview, developmental biologist Stuart Newman discusses what's wrong with proposals for inheritable human genetic modification.
On Vampires and Chromosomesby George Estreich, Biopolitical Times guest contributorBiopolitical TimesMay 9th, 2013The vampires of the Twilight books have superpowers due to two extra chromosomes. In our fang-free human life, however, having extra chromosomes is not usually seen as a plus.
How are Humans Going to Become Extinct?by Sean CoughlanBBC NewsApril 25th, 2013Experiments in areas such as synthetic biology, nanotechnology and machine intelligence are hurtling forward into the territory of the unintended and unpredictable.
Should We Be Trying to Bring Extinct Species Back to Life?by Pete ShanksAlternetApril 8th, 2013Here's a look at greenwashing, guilt-tripping and the politics of "de-extinction."
The British Embryo Authority and the Chamber of Eugenicsby Stuart A. NewmanHuffington PostMarch 11th, 2013Mitochondria replacement would be a misuse of technology with clear potential for individual and social harms.
The Brain is Not Computableby Antonio RegaladoMIT Technology ReviewFebruary 18th, 2013A leading neuroscientist says Kurzweil’s Singularity isn’t going to happen. Instead, humans will assimilate machines.
Displaying 1-10 of 93  
Next >> 
Last Page » 
« Show Complete List » 


ESPAÑOL | PORTUGUÊS | Русский

home | overview | blog | publications| about us | donate | newsletter | press room | privacy policy

CGS • 1936 University Ave, Suite 350, Berkeley, CA 94704 • • (p) 1.510.665.7760 • (F) 1.510.665.8760