...西洋脊美鲸 (Atlantic right whale) North Cape whale 比斯开脊美鲸 (Biscayan right whale) 太平洋脊美鲸 (Pacific right whale) Bowhead 矮鲸 (Pigmy right whale) 格陵兰脊美鲸 (Greenland right whale) 南矮鲸 (Southern pigmy right whale) 格陵兰鲸 (Gre...
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north pacific right whale 北太平洋露脊鲸
In the Arctic, the North Pacific right whale and polar bears are probably threatened the most...
在北极，北太平洋露脊鲸和北极熊可能是最受杂交威胁的两种物种。
In the Arctic, the North Pacific right whale and polar bears are probably threatened the most by hybridization.
在北极，北太平洋露脊鲸和北极熊可能是最受杂交威胁两种物种。
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.
长度可达18米（60英尺）的北太平洋东部露脊鲸，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的起码数量。
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