Webster's Dictionary Definition of Metamorphosis: In Biology. a profound change in form from one stage to the next in the life history of an organism, as from the caterpillar to the pupa and from the pupa to the adult butterfly. There also comes a time, in the evolution of a species where Metamorphosis of the entire genome of a species due to sudden and radical environmental change must take place in order for the species to survive in the new environment...