Lizards grow replacement tails, not replicas
Arizona State University research that shows the regenerated tail of a lizard is quite different from the original is featured in a new Slate video.
Scientists discovered that the regenerated tail is made up of a cartilage tube and long muscle fibers that span the length of the regrown tail, rather than small bones and short muscle fibers like in the original.
Article source: SlateMore ASU in the news