Narwhal population affected by underwater noise pollution海洋噪音污染导致一角鲸数量下降 一角鲸是一种头上长有长牙的海洋哺乳动物。 专家表示，随着气候变暖，海冰融化，船舶航线增多，海洋噪声增加，到2025年，一角鲸有可能会因海洋噪音污染而灭绝。

They thought this gelatinous beast was a goblin shark, but now they claim it’s a Rhinochimaeridae—commonly known as “long-nosed chimaera” or “underwater unicorn from the infernal deeps ...

A diver had a close-up encounter with what she described as “an underwater unicorn” while on an excursion off the coast of Victoria earlier this month. Footage filmed by marine biologist ...

A diver had a close-up encounter with what she described as “an underwater unicorn” while on an excursion off the coast of Victoria earlier this month.Footage filmed by marine biologist Sheree Marris ...

The underwater behaviour of the secretive narwhal has been almost impossible to study until now — but drone technology means we can now see ... The unicorn in Britain's Royal Coat of Arms ...