Scientists with their inventories are slowly are playing god by doing unbelievable things, their evolution brings the prospect of animal organs being transplanted into humans one. Scientists have created the world's first human-sheep chimera which has the body of a sheep and half-human organs. The sheep have 15 per cent human cells and 85 per cent animal cells. Professor Esmail Zanjani created a sheep liver which has a large proportion of human cells and eventually hopes to accurately match a sheep to a transplant patient, using their own stem cells to create their own flock of sheep. The process involves extraction of stem cells from the donor's bone marrow and injecting them into the peritoneum of a sheep's foetus. After two months, when the baby lamb arrives, it would have a liver, heart, lungs and brain that are partly human and available for transplant.

"We would isolate the stem cells from them, inject them into the peritoneum of these animals and then these cells would get distributed throughout the metabolic system into the circulatory system of all the organs in the body. The two ounces of stem cell or bone marrow cell we get would provide enough stem cells to do about ten foetuses. So you don't just have one organ for transplant purposes, you have many available in case the first one fails." said prof Zanjani.
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