: A total internal restructuring. Gills fade, lungs form, and limbs emerge where there were none.
In the beginning, there is only potential. A single cell carries the entire blueprint, an epigenetic program that begins to unfold like a complex piece of music. This isn't just growth; it's . The story of ontogenesis is one of "specialization"—cells that could once have been anything choose to become something specific: the beat of a heart, the spark of a neuron, or the protective layer of skin. The Transformation ontogenesis
: A creature of water, breathing through gills, focused entirely on the present environment. : A total internal restructuring