Name: 鳴鯨 | 世界上最怪異的動物 (Narwhals | World's Weirdest)
Uploaded: 2025-11-05T18:33:43.000Z
Duration: 2 min 14 s

Male narwhals can weigh nearly 2 tons with bodies up to 16ft long.

公獨角鯨體重可達近2噸，身體長度可達16英尺。

But it's their tusks that make them weird.

但讓牠們很奇怪的，其實是牠們那根長長的獠牙。

Among whales, the tusk is actually a single gigantic tooth that can reach 10ft in length.

在鯨魚中，這根獠牙其實是一顆巨大的牙齒，長度可達10英尺。

但為什麼要揮舞這麼大的劍呢？

Narwhals are an animal of misinformation and mystery, dating back to the Middle Ages, when their tusks were fobbed off to royalty as unicorn horns.

獨角鯨是一種充滿誤傳和神祕的動物，牠們的歷史可以追溯到中世紀，當時牠們的獠牙被當作獨角獸角賣給皇室。

Narwhals can dive more than a half mile down to the ocean floor to feast on co squid and cuttlefish.

獨角鯨可以潛入超過半英里的海底，大啖魷魚和墨魚。

Is it used to poke around on that dark ocean floor?

是用來在黑暗的海底裡探測的嗎？

Narwhals, like their dolphin cousins, use sonar to guide them through the depths.

獨角鯨和牠們的海豚親戚一樣，會利用聲納在深海裡導航。

The tusk is jam packed with nerve endings.

Some scientists argue it acts as some kind of sensor.

有些科學家認為它是一種感測器。

那會是一顆很有洞察力的門牙。

But it's the males who predominantly sport the tusks.

不過，主要是雄性才長有獠牙。

If the tusks had a survival advantage, the females would also be long in the tooth.

如果獠牙有生存優勢，那雌性也會長牙。

Some scientists believe this means the tusk serves the same function as a deer's antlers or a teenager's hot rod.

有些科學家認為這表示獠牙的功能就像鹿的鹿角，或是青少年追求的熱門跑車。

A way to show who's the fittest male around.

But whether it's a joust or a jaw session is anybody's guess.

但這究竟是騎士比武還是顎部交流，就不得而知了。