We have created human-animal embryos already, say British team

admixed, admixed embryos, already, animal, by mark henderson, cardinal keith, catholic church, cells, college london, created, cybrids, days, eggs, embryology authority, embryology bill, embryos, human, human fertilisation, lyle armstrong, month, newcastle, newcastle university, process, professor john burn, professor stephen minger, research, roman catholic church, stem, stem cells, team