视频展示了一只山魈的特写镜头。这只山魈有着鲜艳的颜色，脸部和颈部有蓝色、红色和橙色的斑块，眼睛周围是黑色的。它的嘴巴张得很大，露出了锋利的牙齿和粉红色的口腔内部。随后，它闭上了嘴巴，然后又张开，最后闭上嘴巴并转头看向一侧。背景模糊，呈现出绿色的自然环境。
The video shows a close-up of a mandrill, a primate known for its colorful and distinctive facial features. The mandrill is seen yawning widely, revealing its sharp teeth and pinkish-red gums. Its face has vibrant blue and red markings around the nose and mouth, with a mix of orange and yellow fur on its cheeks. The background is blurred, suggesting a natural, green environment. The mandrill's expression changes from a wide yawn to a more relaxed state as it closes its mouth.
A baboon with a colorful face, featuring a red nose, blue markings, and orange fur, opens its mouth wide in a yawn. The baboon's mouth continues to open wider, revealing its teeth and tongue. The baboon's head tilts slightly upward as it yawns fully, showing its large teeth and pink interior. The baboon then closes its mouth and turns its head to the side, looking around. Finally, the baboon faces forward again, with its mouth closed and a calm expression.