海胆:在线播放
所有播放无需安装任何插件，如果播放失败，请切换不同线路!云播放已支持缓存秒加载，欢迎使用!
部分http资源不能在https下加载，请将网址切回http.
观看小提示:[DVD标清版] [BD超清版] [HD高清版] [TS抢先版:不清晰]
海胆:最新迅雷BT资源
海胆:最新字幕下载
海胆:剧情介绍
Plot Summary:A close-up look at sand urchins and rock urchins. At the seashore, a man digs up a sand urchin. We look closely. He sets it back in the sand, and it burrows out of sight. Its intestines take nutrients out of sand. Using magnification 200,000 times normal size, we see a rock urchin's spines with suckers on the end; a drawing illustrates how they work. A sea urchin walks toward a rock. We see three-fingered jaws - pedicellaria at the end of flexible stems - take in algae and other bits. We also see cilia less than 0.001 ml in length; their motion constant, creating whirlpools. On the shore again, we watch the setting sun. Occasional titles in French tell us what to watch for.
关键词：海胆下载海胆在线播放正版海胆影视海胆王电影