regeneration

I have no desire to be a starfish. (What would I do with five arms?) But this wonderful sea creature does possess one trait that might be just a bit enviable. Like a number of other astounding organisms—e.g., lizards, salamanders, sea cucumbers—starfish can grow back limbs and other parts of their bodies that have been damaged or severed.  The process is called *regeneration and it’s alwaysMORE...