这些图像用来伪装成街道的一部分，给人街道已被建筑物填满的视觉感受，否则这些地方只是用百叶窗和木板遮挡住。
The images disguise parts of the street, giving the impression units are occupied, which otherwise would be riddled with boards and shutters.
拥有更为原始的羽毛的恐龙，当初可能将其用于调节身体温度、伪装和发出视觉信号，而非辅助飞行。
It could be that dinosaurs with more primitive feathers used them for temperature regulation, camouflage and visual signaling, rather than flight.
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