Scientists pointed out that Lv Touya, and other birds has the Banshuibanxing habits, can help them in a dangerous environment and other animals to escape the predator.

• 科学家们指出，绿头鸭等鸟类所具备的半睡半醒习性，可帮助它们在危险的环境中逃脱其他动物的捕食。