Fiber fabrication in animals is an important inspiration source for polymeric materials. Velvet worm prey capture slime represents a unique way of fiber fabrication by using monodisperse lipid-protein nanoglobules as storage units, which reversibly self-assemble after mechanical impact into stiff polymeric fibers. The primary component of the tensile fiber are proteins. With the planned experiment we aim at the characterisation by small-angle neutron scattering of the internal architecture of the nanoglobules and of their reorganization into fibers and back.