It was revealed today that in a futuristic Dr Frankenstein-like experiment, scientisist in the US have injected human stem cells into pig embryos to produce human-pig embryos known as chimeras. But, concern has already surfaced that playing God in this way could open the door to pig’s developing with human intelligence and too much like us.

There are fears that mixing pig and human genes in this way could see the animals develop looking like animals but with human brains or boosted intelligence. The research is so controversial that last year, the main US medical research agency, the National Institutes of Health, imposed a moratorium on funding such experiments. CONTINUE