Name: Crossing Paths With A Narwhal | The Magical Aquatic World with Philippe Cousteau
Uploaded: 2019-04-09T09:54:08.000Z
Duration: 2 min 4 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

- A narwhal's horn is actually an enlarged tooth

Present continuous

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.