Name: 一角クジラとの道を渡る｜フィリップ・クストーのいる魔法の水の世界 (Crossing Paths With A Narwhal | The Magical Aquatic World with Philippe Cousteau)
Uploaded: 2021-01-14T08:09:37.000Z
Duration: 2 min 4 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

- A narwhal's horn is actually an enlarged tooth

現在進行形

Now, narwhals can grow up to 17 feet in length,

and their front tooth can grow up to 10 feet in length.

It's the only straight tusk in the world.

But typically, these are only found on males

and are actually full of up to 10 million nerve endings,

helping the narwhal detect pressure, salt levels

It can bend about one foot in any direction,

But a new theory suggests, they're for attracting a mate.

Narwhals don't migrate like other whale species.

They spend their entire lives in icy, arctic waters

because narwhals don't thrive in captivity.