Speaking of cats, a Korean scientist has successfully cloned a cat after modifying the gene for skin color. The picture at the head of the article is rather striking; it's not every day that you see a cat that glows under ultraviolet light.
This cat represents a proof-of-concept for a process that they will use to clone tigers and other animals that are in danger of extinction. Unlike with stem cells, a virus is inserted into the ova of one cat and then the ova is implanted into the womb of a donor cat. It is unfortunate that we are coming to the point where genetic engineering will be necessary to preserve these species.
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