This viewpoint is disputed. All living organisms constantly develop new structures. Even 'dead' material forms structures, mostly of amorphous form and occasionally crystalline. Strangely these planar or straight line shapes, which occur is rarely in nature, are almost always used in mechanics. This has certain advantages for mechanics, but is a total contradiction of the natural structures of the fluids.
Fluids are liquid or gaseous and therefore have no stable shape or structure.
However as soon as a fluid starts to move, structures are created. These structures are generally fleeting, but always have certain characteristics. Fluid particles never move in a linear fashion. All movements of fluids consist of the rolling in or out of a vortex, the vortex ideally forming a closed system. The formation of structures by living organisms cannot be explained with the conventional scientific approach.