[视频]原来海星是这样走路的 还是头一回看到
2017-10-09 09:56:53 [稿源：秒拍] [编辑：彭莎]
海星体外有着密集的管足，每条管足的末端都有一个吸盘，海星就是靠管足的移动和吸盘的吸力在海底运动的，不过速度很慢，一分钟只能移动几厘米。
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