What does a narwhal use its horn for?

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Images

Two narwhals swimming underwater, with the male at right displaying a long, spiral tusk and the other narwhal, possibly female, without a tusk.

A narwhal (Monodon monoceros) swims underwater, showing its long, straight tusk extending from above its mouth and its mottled gray body.

What does a narwhal use its horn for?: Media

Images

Two narwhals swimming underwater, with the male at right displaying a long, spiral tusk and the other narwhal, possibly female, without a tusk.

Narwhals

A male narwhal (right) swimming with another, possibly female, narwhal.

© Planetfelicity/Dreamstime.com

A narwhal (Monodon monoceros) swims underwater, showing its long, straight tusk extending from above its mouth and its mottled gray body.

Narwhal

Male narwhals have long, straight tusks on the tip of their upper jaw.

© Planetfelicity/Dreamstime.com