A mother duck leads a line of exactly FIVE ducklings toward a curb; the fifth and smallest duckling struggles at the step, then hops up to rejoin the others. There are exactly five ducklings in total — the same five throughout the entire video. Never add, remove, duplicate, or change the number of ducklings; keep all five visible and consistent from start to finish. Cozy indoor lamplight, authentic home-video look, slightly imperfect handheld framing with natural shake. One continuous approximately 10-second moment with a clear beginning, obstacle, and payoff. Audio: soft webbed footsteps, tiny chirps, room tone, a small scrape at the curb, then a bright chirp when the last duckling succeeds.

严格保持五只动物稳定，通过最后一只的延迟动作构成障碍与解决。 英文标题：Exactly Five Ducklings Climb a Step 中文提示词译文： 一只母鸭带着恰好五只小鸭排成一列走向台阶；第五只也是最小的一只在台阶前挣扎，随后跳上去重新加入队伍。总数必须恰好为五只，并且整段视频始终是同样五只。绝不添加、移除、复制或改变小鸭数量；从头到尾保持五只都可见且一致。温暖室内灯光，真实家庭录像质感，略不完美的自然手持构图。约10秒的一镜到底，开端、障碍和结果清楚。音频：轻柔蹼足声、小声啾鸣、室内底噪、台阶刮擦声，最后一只成功时发出明亮叫声。 原始发布：https://x.com/AIatMeta/status/2074600027733860758 来源许可/权利说明：CC BY 4.0（ImagineVid 编辑文本；第三方 Prompt、视频与创作者权利归原主，保留完整归属）