Domain: Humanities and Social Sciences — Archaeology
Target concept: Dental model

Video generation prompt: Place the skull models of carnivorous and herbivorous animals side by side, with the dental model of the carnivorous animal's skull on the left and that of the herbivorous animal's skull on the right.

Evaluation guide:
(i) Target concept: Comparative dental morphology as a functional adaptation distinguishing mammalian feeding ecologies.
Minimum mechanism: Skulls must preserve anatomically accurate, species-typical dental topography embedded in bony cranial structure; no isolated teeth or schematic diagrams permitted; morphology must be observable *in situ* on complete, articulated skull models.
(ii)Storyline: Frame opens on static, front-facing view of two intact skulls positioned side-by-side in same plane; left skull enters field of view (or is revealed) showing canine dominance and reduced molar surface area; right skull simultaneously (or in immediate continuity) reveals diastema, hypsodont molars, and absence of canines; causal transition is purely visual comparison: no narration, annotation, or motion required; viewpoint is fixed, eye-level, frontal, with even illumination ensuring full visibility of dental arcade on both specimens.

Manual:
Experimental Procedure
1. Place intact skull model of a carnivorous animal (e.g., wolf or cat) on the left side of the frame.
2. Place intact skull model of an herbivorous animal (e.g., horse or rabbit) on the right side of the frame.
3. Ensure both skulls face forward, are fully visible, and remain motionless.
Observation of Experimental Phenomena
Left skull shows prominent pointed canine teeth and shearing cheek teeth; right skull shows flat-crowned molars, a visible gap (diastema) between incisors and premolars, and no large canines.
Summary of Experimental Principles
Carnivores possess dental adaptations for killing and tearing flesh (large canines, carnassials); herbivores possess dental adaptations for grinding plant material (hypsodont molars, diastema for manipulating vegetation).

Prompt Grounding rubric:
level_1: No skull models appear in frame; or only one of the two skull models (carnivore-side, herbivore-side) is present; or both appear but are not arranged left-right (e.g., front-to-back, diagonal, or one hidden behind the other); or neither model can be told apart as left versus right at all.
level_2: Two skull models are visible, but their left/right placement is wrong: the carnivore skull model is on the right, or the herbivore skull model is on the left, or the two models are not in the same side-by-side plane (one stacked above the other, one much farther back, or shown in separate shots rather than together).
level_3: Two intact, articulated skull models appear side by side in a single continuous shot from a fixed camera position: the carnivore-side skull is on the left, the herbivore-side skull is on the right, and both are fully visible whole skulls (not isolated jaws, loose teeth, or drawings).
level_4: All conditions for score 3 are met, AND both skulls face the camera at a similar front-facing angle so their tooth rows are visible on both (neither skull is turned to show mainly its side or the back of the cranium), AND the two skulls appear at comparable size and distance from the camera (neither is zoomed in much closer or cropped at the frame edge relative to the other), AND no hand, stand, or label card covers the mouth or tooth region of either skull.
level_5: All conditions for score 4 are met, AND the two skull models keep their left/right positions and front-facing orientation without sliding, rotating, or drifting for the full length of the clip, AND both complete skulls (not just the jaws) stay on screen the entire time with no part of either one cut off by the frame edge.

Scientific and Causal Correctness rubric:
level_1: Dental anatomy contradicts basic carnivore/herbivore biology: the left skull shows flat-topped molars and no visible canines, or the right skull shows long pointed canines and blade-like shearing teeth, or both skulls show identical, indistinguishable dentition, or teeth appear as separate objects floating apart from any jawbone.
level_2: One skull shows a major biological error even if the other looks roughly right: the left (carnivore) skull lacks canine teeth or shows flat plant-grinding molars, or the right (herbivore) skull has an unbroken tooth row with enlarged stabbing canines and no gap, or teeth on either skull are detached from or clearly misaligned with the jawbone.
level_3: The left skull shows at least one correct carnivore-type feature (a long, pointed canine, or a blade-edged carnassial-like cheek tooth) and the right skull shows at least one correct herbivore-type feature (broad, flat-topped molars, or a visible gap [a diastema] between the front teeth and the cheek teeth), with no clearly contradictory trait on either skull.
level_4: All conditions for score 3 are met, AND the left skull shows only carnivore-consistent teeth (no flat grinding molars, no diastema gap), AND the right skull shows only herbivore-consistent teeth (no large stabbing canines, no carnassial-like blades), AND on both skulls the teeth sit correctly in the jaw at a natural biting angle rather than floating or twisted out of place.
level_5: All conditions for score 4 are met, AND the left skull shows at least two carnivore traits together (for example a prominent canine plus a carnassial-like shearing cheek tooth with a reduced molar count), AND the right skull shows at least two herbivore traits together (for example a diastema plus tall, flat-topped grinding molars), AND on each skull the visible teeth form a coherent bite, with upper and lower rows lining up as a working jaw rather than as scattered, mismatched features.

Spatiotemporal Consistency rubric:
level_1: Severe continuity break: one or both skull models vanish or appear abruptly partway through the clip, jump to a new position with no visible motion in between, visibly bend, melt, or warp as though made of soft material instead of rigid bone, or the lighting or shadows across the scene shift abruptly between frames with no cause.
level_2: Noticeable but non-catastrophic drift: one or both skulls visibly slide, rotate, or jitter in place by more than roughly a tenth of the skull's own width over the clip; or the background behind the skulls shifts as though the camera moved even though no camera motion was intended; or a shadow cast by one of the skulls swings to a new direction with no change in the room's light.
level_3: Both skull models stay fully visible and stationary for the whole clip: neither one disappears, reappears, splits apart, or jumps position; the camera framing stays fixed with no zoom, pan, or cut; and no motion blur smears the tooth rows enough to obscure their shape.
level_4: All conditions for score 3 are met, AND the left and right skulls stay in the same depth plane relative to the camera (neither suddenly looks closer/larger or farther/smaller than the other), AND the tooth rows on both skulls keep their shape frame to frame with no stretching or warping, AND any cast shadows keep a consistent direction and softness throughout, staying anchored at the base of each skull.
level_5: All conditions for score 4 are met, AND there is no visible flicker, doubling, or edge-tearing along the tooth outlines or jaw edges at any point in the clip, AND the alignment between the upper and lower teeth on each skull stays fixed, with no drifting, sliding, or misregistration between the jaw halves across frames.