An oldie but...

Interesting info:
While I was looking for reference images, apparently when one teeth grows long - the head start growing asymmetrical.

What I didn't know: on rare cases both front tooth develops into tusks. I bet it is not without any pain to be a Narwhal.

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[–] 3 points 1 week ago (1 child)

The fun thing is that narwhal tusks aren't just long teeth like say elephant ivory is, they're also kinda like enamel-crusted whiskers.

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