http://whywontgodhealamputees.com/god5.htm
No matter how many people pray, no matter how often they pray, no matter how sincere they are, no matter how much they believe, no matter how deserving the amputee, what we know is that prayers do not inspire God to regenerate amputated legs. This happens despite what Jesus promises us

• If you believe, you will receive whatever you ask for in prayer. [Matthew 21:21]
• If you ask anything in my name, I will do it. [John 14:14]
• Ask, and it will be given you. [Matthew 7:7]
• Nothing will be impossible to you. [Matthew 17:20]
• Believe that you have received it, and it will be yours. [Mark 11:24]

By looking at amputees, we can see that something is wrong. Jesus is not telling the truth. God never answers prayers to spontaneously restore lost limbs, despite Jesus' statements in the Bible. Accepting this piece of factual information, rather than denying it, is the first step in understanding something extremely important about how prayer really works.

If God is imaginary, then religion is a complete illusion. Christianity, Judaism and Islam are pointless. Belief in God is nothing but a silly superstition, and this superstition leads a significant portion of the population to be delusional.

The salamander, an amphibian, is possibly the most adept vertebrate order for their capability of regenerating limbs, tails, jaws, eyes and a variety of internal structures.

On April 27 of 1641 the archbishop of Zaragoza pronounced a judgment, thereby officially declaring the authenticity of the miracle. At the end of the year Pellicer was also invited to the royal court at Madrid, where King Philip IV knelt down before him and kissed the leg. Recordings also show that the restored leg was the same one as that which had been amputated two and a half years before, for it could be reidentified through some bruises and scars that were there before the amputation. Also, the hole in the cemetery of the hospital of Zaragoza in which the leg had been buried was excavated and found empty.

And there is one thing that jumps out...there is no documentation or witness accounts confirming his leg was ever gone.

Note that no evidence exists that his leg was ever amputated — or that he was even treated at all — at the hospital in Zaragoza other than his own word. He named three doctors there, but for some reason there is no record of their having been interviewed by either the delegation or the trial. The trial did find that no leg was buried where he said it was at the hospital, but this is exactly what we'd expect to find if it had never been amputated. Although this lack of a buried leg is often put forth as evidence that the story is true, it is actually a lack of evidence of anything.