Scientists have cloned the lowly rat for the first time, and, believe it or not, people are happy about it.
The cat, cow and pig, among others, have all been cloned. Why clone all these animals? Pet owners long to resurrect their lost Muffin, ranchers want to reproduce their best beef cattle, and pig organs might one day replace damaged human organs. But why anyone would want to clone a rat is beyond belief for most people, except researchers who study heart disease, diabetes and neurological disorders.
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