In 2007, the Human Fertilisation and Embryology Authority in London, UK, published "Hybrids and Chimeras: A Report on the Findings of the Consultation", which summarized a public debate about research on, and suggested policy for, human animal chimeras.
In 1984 Sabine Meinecke-Tillmann and Burkhard Meinecke published their article “Experimental Chimeras — Removal of Reproductive Barrier Between Sheep and Goat” in Nature. Their study conquered the reproductive barrier between
The paper “Formation of Genetically Mosaic Mouse Embryos and Early Development of Lethal (t12/t12)-Normal Mosaics,” by Beatrice Mintz, describes a technique to fuse two mouse embryos into a single embryo. This work was published in the
In November 2007, Masato Nakagawa, along with a number of other researchers including Kazutoshi Takahashi, Keisuke Okita, and
Through various studies developmental biologists have been able to determine that the muscles of the back, ribs, and limbs derive from
Since the 1950s, scientists have developed interspecies blastocysts in laboratory settings, but not until the 1990s did proposals emerge to engineer interspecies blastocysts that contained human genetic or cellular material. Even if these embryos were not permitted to mature to fetal stages, their ethical and political status became debated within nations attempting to use them for