A bone which is part of a [page:Skeleton]. The skeleton in turn is used by the [page:SkinnedMesh]. Bones are almost identical to a blank [page:Object3D].
		var root = new THREE.Bone();
		var child = new THREE.Bone();
		root.add( child );
		child.position.y = 5;
		
		Creates a new [name].
See the base [page:Object3D] class for common properties.
			Used to check whether this or derived classes are bones. Default is *true*.
			You should not change this, as it used internally for optimisation.
		
Set to 'Bone', this can be used to find all Bones in a scene.
See the base [page:Object3D] class for common methods.
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]