The ethical issues around human-monkey chimeras

As scientists move closer to making organisms that are part human and part animal, questions arise about the benefits of such research and the protocols involved in inter-species experiments

The study used eggs harvested from monkeys. While the animals were not killed, any use of non-human primates should be approached conservatively and be consistent with international standards, say the writers.PHOTO: AFP

The recent announcement that scientists have made human-monkey embryos and cultured them in the lab for two weeks made international headlines.

The technology to make animals that contain cells from other species has been available for decades and used extensively in research. These organisms are called "chimeras".

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