问天下谁是英雄

Who are the heroes in the air?

丹顶鹤

Red-crowned Crane

Grus japonensis(Miiller)

庄子曰：“凫胫虽短，续之则优。鹤胫虽长，断之则悲”。丹顶鹤是涉禽，原以为胫长是为了涉水，现在看来，也是拳击之利器。

“The shank of a wild duck is short，but incessant steps make up for it．The shank of a crane is long，but it causes grief when it is cut in a fight．”This observation reveals that the shank of a crane serves not merely to facilitate wading，but mainly as a weapon for fighting．