Because two skeletons are joined with nut and bolt.
joints. heres the definition of joints: joint |joint| noun a structure in the human or animal body at which two parts of the skeleton are fitted together.
i think it is capering
The most structural joint that occurs in the human skeleton is hyoid bone
sacroiliac joint
Immoveable joint .
sacroiliac joint
sacroiliac joint
sacroiliac joint on the sacrumSacroiliac
i think it is capering
Sacroiliac Joint
50
By the sacroiliac joint