Floating inside was a leathery ball-shaped object. 里面漂浮着一个皮球样皮质物体。
"Flamingos have evolved very leathery skin on their legs so they can tolerate the salt water," says David Harper, a professor at the University of Leicester. 莱斯特大学教授戴维·哈珀表示:“火烈鸟的腿上已经进化出了非常坚韧的皮肤,这样它们就可以忍受盐水。”