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About Animal Technologies


Many applications of animal cloning and genetic modification are controversial for environmental, health, animal welfare, and social reasons.

At least eighteen animal species have been cloned since 1996, when scientists produced Dolly the sheep, the world's first cloned mammal. Then and now, only a tiny percentage of cloning attempts produce live offspring. Many of these clones are unhealthy, and some leading scientists believe that none are "normal."

Nonetheless, animal cloning efforts continue. Some are justified as scientific experiments. Others are commercial ventures, either to produce pets for consumers or breeding animals for the livestock industry. The US Food and Drug Administration has approved the inclusion of meat and milk from cloned animals (without labels) in the  food supply.

Like cloning, genetic modification of animals is remarkably inefficient. It is being pursued for several purposes. Genetically modified (or transgenic) animals are commonly used in research. Efforts are underway to produce transgenic pigs as a source of organ transplants, transgenic fish for food, and transgenic livestock that resist animal diseases. In a practice sometimes called pharming, several mammalian species (cattle, sheep, and goats) have been genetically engineered to produce commercially useful human proteins in their milk. Fish engineered to glow in the dark have been developed and marketed as pets. Proposals to clone extinct species, particularly mammoths and neanderthals, regularly appear in the news media.



Scientists solve CRISPR’s ‘Energizer bunny’ problemby Sharon BegleySTATApril 27th, 2016A new CRISPR system called "CORRECT" stopped Cas9 from cutting again and again, and allowed researchers to edit one but not both copies of a target gene.
Inside the Hidden Global Supply Chain for Frozen Sperm, Eggs, and Embryosby Sarah ZhangWIREDApril 25th, 2016Ever-changing laws and attitudes, which vary not only country by country but within a country, can make transportation logistically difficult.
Save the Mosquitosby Ashley DawsonJacobinApril 22nd, 2016We should fight Zika with better public health, not genetically modified mosquitos.
The Scientific Swap Meet Behind the Gene-Editing Boomby Antonio RegaladoMIT Technology ReviewApril 8th, 2016A Cambridge non-profit called AddGene, described as "Amazon.com for biological parts," ships CRISPR-Cas9 parts all over the world.
Uterus Transplants: Identifying Stakeholders & Objectionsby Elliot HosmanMarch 10th, 2016Clinical trials have migrated from Sweden to the US, and questions regarding safety, ethics, and social justice are mounting.
CRISPR Eugenics in The X Filesby Elliot HosmanMarch 10th, 2016In the comeback season finale, the show explores the use of human gene editing to combat global warming and overpopulation.
A Biotech Evangelist Seeks a Zika Dividendby Andrew PollackThe New York TimesMarch 5th, 2016A diverse biotechnology company hopes its genetically engineered mosquitoes can help stop the spread of a devastating virus. But that’s just a start.
Human Babies from CRISPR Pigsby Stuart NewmanHuffPost ScienceFebruary 29th, 2016300 years after Jonathan Swift, can anyone doubt that the grandchildren of some people born this year will be delivered fresh off the farm?
Scientists Make Mice Glumby Pete ShanksBiopolitical TimesFebruary 25th, 2016Researchers investigate human genetic variant for seasonal affective disorder (SAD) in transgenic mice models.
Chinese Cloning Firm Pumps $15 Million into California Stem Cell Businessby David JensenCalifornia Stem Cell ReportFebruary 24th, 2016A financially strapped California stem cell company could be taken over by a Chinese enterprise that says it can clone humans, and is "only holding off for fear of the public reaction."
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