This is, quite literally, the power to manipulate biology and biological lifeforms (mostly animals, usually not plants), also referred to as biomancy, biokinesis, fleshwarping, fleshcrafting and more. Depending on the setting and the power level, it may vary in range (long-range vs. strictly hands-on), comprehensiveness (e.g., can only affect humans), or scope (e.g., limited to the user's own biology).