单词grey-nurse-shark
网络: 灰鲨；沙锥齿鲨；灰护士鲨
The greatest threat to the grey nurse shark is from fishing and accidental hooking, and shark finning .
灰鲨常因捕鱼、误入鱼钩和猎鲨鳍活动中丧命。
This photo taken in May 1999 shows a grey nurse shark swimming among bathers at Oceanworld, in Sydney, Australia.
照片摄于1999年5月份，在澳大利亚悉尼的海洋世界，一头沙锥齿鲨在游泳者中间畅游。