视频展示了一只牦牛的特写镜头。牦牛的毛发主要是黑色的，头顶有一撮白色的毛发。它的耳朵竖立，角弯曲向上。牦牛站在一片草地上，背景是模糊的绿色植被和草地。牦牛的嘴巴微微张开，似乎在咀嚼或呼吸，显示出它在自然环境中的平静状态。阳光照射在牦牛的身上，突显了它的毛发质感和细节。
The video shows a close-up of a yak in a grassy field. The yak has a black coat with a distinctive white patch on its forehead and horns that curve outward. It is standing still, facing to the right, and appears to be in a natural outdoor setting with greenery in the background. The lighting suggests it is a sunny day.
A black yak with a white stripe on its forehead is standing in a grassy field. The yak's tongue is initially extended out of its mouth. The yak begins to retract its tongue back into its mouth. The tongue continues to move back until it is fully retracted. The yak's head remains still as it completes the action.