October 13, 2015 | Will

I've heard a lot recently about a new way of editing genes called CRISPR.

Now scientists from Harvard University think they can use it to make organs from pigs compatible with the human body - which could make a huge difference to the number of organs available for transplant.

There's still a long way to go, but I think this could be a really exciting breakthrough. Even so, I can understand why some people might have reservations about accepting organs from a pig.

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We already use pig heart valves in human transplants, but slight differences in the genetic material cause the body to reject them.

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Image: Flickr/Dan Belanescu

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