Will We Soon Regrow Severed Limbs?
What if victims of terrorism, who have had their limbs hacked off, could grow a new one? What if a paralyzed person could grow a new spine?or someone with heart disease could grow a new heart? This might be something that actually comes true, in the not-so-distant future.
Scientists are studying zebrafish to see how it’s done. If a zebrafish loses a chunk of its tail fin, it’ll grow back within a week. Like lizards, newts, and frogs, a zebrafish can replace surprisingly complex body parts. A tail fin, for example, has many different types of cells and is a very intricate structure. It is the fish version of an arm or leg.
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