- were not enough to ensure the future of the birds.
并不足以确保鸟类有一个光明的未来 - They also drew on a rather flamboyant ancient behavior,
它们还依赖于 一种相当引人注目的古老行为 - a behavior that ensures the survival of the fittest.
这种行为能够确保最优秀者生存下来 - Courtship.
求爱 - For the flamingos,
对火烈鸟来说 - that means a dance-off...
这就是一场舞蹈比赛 - and it's taken very seriously.
它们对此非常认真