Probably the highest achievement of medical science of recent times is Cloning - when a lamb is "created" from a sheep's udder. However, so far no human clone has been developed in human history.

However, in the Bhagawata there exists a case wherein learned rishis got together and created a new human being from the remains of his dead father. The story goes thus...

There was once, a king in the Ikshwaku dynasty by the name of Vena. Vena was a tyrant, so was killed by public. There was no heir to the throne. So sages prepared a son from the dead Vena's thigh. But it was an abnormal child and so was discarded. Then another child was produced from Vena's right hand. It was a handsome, brilliant child. It was named as Pruthu and was coronated. It was the first human clone of the world produced from a dead man.

The word 'Pruthu' is scientific as it means an extension. A clone is really an extension of a single animal. Modern scientists dream to produce a clone of Einstein; but from this precedence recorded in the Bhagawata, it is clear that while Einstein's clone may look like him but may not be as intelligent. Vena was bad by nature but Pruthu was good natured.

This difference is caused because mind is different and mind cannot be cloned, only the physical body may be cloned. Thus by examining the Puranas we may take some advantage in the modern scientific problems.