They've found 11 new species of sharks, rays and chimaeras in the last three years.
他们发现，在过去三年11鲨鱼，鳐和嵌合体的新品种。
They've found 11 new species of sharks , rays and chimaeras in the last three years.
他们发现，在过去三年11鲨鱼，鳐和嵌合体的新品种。
Chondrichthyes (sharks, rays and chimaeras) account for only 2% of gnathostome species, the Osteichthyes accounting for the other 98%.
软骨鱼类(鲨鱼、鳐、银鲛)仅占有颌类物种数的2%，其余98%的有颌类都属于硬骨鱼类。
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