dugong descends from the surface blue water to land on sand has lots of remoras ws - 水生生物 個影片檔及 b 捲影像00:07
blue whale resting, strongly pronounced ridge to blow holes, good sound (2000) - 水生生物 個影片檔及 b 捲影像00:06
two humpback whales spyhopping in front of whale watching boat, good sound (2003) - 水生生物 個影片檔及 b 捲影像00:11