“The various bones composing the endoskeleton are united to one another either by sutures or by movable joints.”

“The other type of skeleton is the endoskeleton, which provides a solid frame to carry the soft tissues of all vertebrates, including humans.”

“He ended up hurting himself more with hitting the metal endoskeleton underneath.”

“In the many groups of animals that can move, it is achieved either by external structures known as exoskeletons or by internal structures known as endoskeletons.”

“Their relationships with modern gnathostomes have remained mysterious, partly because their un-mineralized endoskeletons rarely fossilized.”