Attached Link: http://www.3dmenagerie.com/index-goo.htm

heyas; you can do them any way you want to. the poser animals' eyes are mostly moved by morphs (or not at all. :/ ). if the figure has a short jaw, such as a human-like character, it might be easier to use morphs to open the mouth. if it has a long jaw, like an animal, it can be made posable quite easily. actually, for jaws, i recommend using a 'bone.' the head can be all one group and the jaw can be a semicircle of 4-5 polygons hidden inside. when you set the jaw 'bone's' jp's, it will move the head skin as if you had separated it all out. meanwhile, any facial expression morphs can be done on the head, without having to have separate ones for the head and jaw. check out my poser tutorials on my goodie page. :)