You are viewing a single comment's thread from:RE: When narwhals (Monodon monoceros) rub their tusks together, it is believed to be to share information about the water, not as a sign of aggressive rivalryView the full contextView the direct parentvalth (68)in #science • 7 years ago Hehe, it would make sense. This is really one of the closest animals we have to the unicorn ;)