Okay, so the nuchal ligament, it's like a rubber band that attaches to the back of the animal's skull and then runs down its spine and keeps the head straight as it runs.

希瑟：好的，项韧带就像一根橡皮筋，附着在动物的头骨后部，然后沿着脊柱向下延伸，在奔跑时保持头部笔直。