• In the Arctic, the North Pacific right whale and polar bears are probably threatened the most...

    北极太平洋北极熊可能最受杂交威胁的两种物种。

    youdao

  • In the Arctic, the North Pacific right whale and polar bears are probably threatened the most by hybridization.

    北极太平洋北极熊可能受杂交威胁两种物种。

    youdao

  • Numbering well under 50, the eastern North Pacific right whale --which can reach up to 18 metres (60 feet) in length -- falls below theIUCN's threshold of likely viability as a species.

    长度1860英尺太平洋东部露脊,数目远在50以下低于世界自然保护联盟作为一个可能存活物种起码数量

    youdao

  • Numbering well under 50, the eastern North Pacific right whale --which can reach up to 18 metres (60 feet) in length -- falls below theIUCN's threshold of likely viability as a species.

    长度1860英尺太平洋东部露脊,数目远在50以下低于世界自然保护联盟作为一个可能存活物种起码数量

    youdao

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