Knuckle waking hand postures in an orangutan (Pongo pygmaeus).
D000818:Animals; D005384:Finger Joint; D005552:Forelimb / Q000502:physiology*; D015186:Hominidae / Q000502:physiology*; D008124:Locomotion; D008297:Male; D008663:Metacarpus / Q000502:physiology; D002679:Pan troglodytes / Q000502:physiology; D010828:Physiology, Comparative; D011187:Posture